diff --git a/scarb/src/core/manifest/toml_manifest.rs b/scarb/src/core/manifest/toml_manifest.rs
index c4287cd00..64485e847 100644
--- a/scarb/src/core/manifest/toml_manifest.rs
+++ b/scarb/src/core/manifest/toml_manifest.rs
@@ -24,8 +24,8 @@ use crate::core::manifest::{ManifestDependency, ManifestMetadata, Summary, Targe
 use crate::core::package::PackageId;
 use crate::core::source::{GitReference, SourceId};
 use crate::core::{
-    DepKind, DependencyVersionReq, InliningStrategy, ManifestBuilder, ManifestCompilerConfig,
-    PackageName, TargetKind, TestTargetProps, TestTargetType,
+    Config, DepKind, DependencyVersionReq, InliningStrategy, ManifestBuilder,
+    ManifestCompilerConfig, PackageName, TargetKind, TestTargetProps, TestTargetType,
 };
 use crate::internal::fsx;
 use crate::internal::fsx::PathBufUtf8Ext;
@@ -407,6 +407,7 @@ impl TomlManifest {
         source_id: SourceId,
         profile: Profile,
         workspace_manifest: Option<&TomlManifest>,
+        config: &Config,
     ) -> Result<Manifest> {
         let root = manifest_path
             .parent()
@@ -582,7 +583,15 @@ impl TomlManifest {
             .clone()
             .map(|edition| edition.resolve("edition", || inheritable_package.edition()))
             .transpose()?
-            .unwrap_or_default();
+            .unwrap_or_else(|| {
+                if !targets.iter().any(Target::is_cairo_plugin) {
+                    config.ui().warn(format!(
+                        "`edition` field not set in `[package]` section for package `{}`",
+                        package_id.name
+                    ));
+                }
+                Edition::default()
+            });
 
         // TODO (#1040): add checking for fields that are not present in ExperimentalFeaturesConfig
         let experimental_features = package.experimental_features.clone();
diff --git a/scarb/src/ops/workspace.rs b/scarb/src/ops/workspace.rs
index 2b6aedcf0..c2b7c679e 100644
--- a/scarb/src/ops/workspace.rs
+++ b/scarb/src/ops/workspace.rs
@@ -86,6 +86,7 @@ fn read_workspace_root<'c>(
                 source_id,
                 config.profile(),
                 Some(&toml_manifest),
+                config,
             )
             .with_context(|| format!("failed to parse manifest at: {manifest_path}"))?;
         let manifest = Box::new(manifest);
@@ -119,6 +120,7 @@ fn read_workspace_root<'c>(
                         source_id,
                         config.profile(),
                         Some(&toml_manifest),
+                        config,
                     )
                     .with_context(|| format!("failed to parse manifest at: {manifest_path}"))?;
                 let manifest = Box::new(manifest);
diff --git a/scarb/tests/add.rs b/scarb/tests/add.rs
index 472460edf..33855d040 100644
--- a/scarb/tests/add.rs
+++ b/scarb/tests/add.rs
@@ -16,6 +16,7 @@ fn registry_with_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -24,6 +25,7 @@ fn registry_with_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -40,6 +42,7 @@ fn registry_with_caret_version_req() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -48,6 +51,7 @@ fn registry_with_caret_version_req() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -64,6 +68,7 @@ fn registry_without_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .failure()
         .stdout_matches(indoc! {r#"
@@ -80,11 +85,13 @@ fn no_dependencies_section() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -100,6 +107,7 @@ fn dry_run() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -128,11 +136,13 @@ fn path() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { path = "../dep" }
@@ -158,11 +168,13 @@ fn path_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.0.0", path = "../dep" }
@@ -188,11 +200,13 @@ fn runs_resolver_if_network_is_allowed() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.0.0", path = "../dep" }
@@ -212,11 +226,13 @@ fn git() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { git = "https://example.com/" }
@@ -232,11 +248,13 @@ fn git_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.0.0", git = "https://example.com/" }
@@ -256,11 +274,13 @@ fn git_spec(what: &str) {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(formatdoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = {{ git = "https://example.com/", {what} = "abcd" }}
@@ -276,6 +296,7 @@ fn overwrite_registry_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -284,6 +305,7 @@ fn overwrite_registry_version() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "2.0.0"
@@ -299,6 +321,7 @@ fn overwrite_registry_version_simplifies() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.0.0" }
@@ -307,6 +330,7 @@ fn overwrite_registry_version_simplifies() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "2.0.0"
@@ -338,6 +362,7 @@ fn overwrite_change_source_from_path_to_git() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.2.3", path = "../dep" }
@@ -346,6 +371,7 @@ fn overwrite_change_source_from_path_to_git() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = { version = "1.2.3", git = "https://example.com/", branch = "abc" }
@@ -361,6 +387,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -371,6 +398,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -386,6 +414,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -397,6 +426,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -413,6 +443,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -425,6 +456,7 @@ fn should_sort_if_already_sorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -445,6 +477,7 @@ fn should_not_sort_if_already_unsorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -455,6 +488,7 @@ fn should_not_sort_if_already_unsorted() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -473,11 +507,13 @@ fn add_dev_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .output(indoc! {r#"
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dev-dependencies]
             foo = "1.0.0"
@@ -493,6 +529,7 @@ fn add_git_dep_with_invalid_url() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .failure()
         .stdout_matches(indoc! {r#"
diff --git a/scarb/tests/build.rs b/scarb/tests/build.rs
index 4d2407dbc..a6f9a5f0e 100644
--- a/scarb/tests/build.rs
+++ b/scarb/tests/build.rs
@@ -278,6 +278,7 @@ fn compile_with_incompatible_cairo_version() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
             cairo-version = "33.33.0"
             "#,
         )
@@ -344,6 +345,27 @@ fn compile_with_invalid_non_numeric_dep_version() {
         "#});
 }
 
+#[test]
+fn compile_with_unset_edition() {
+    let t = TempDir::new().unwrap();
+    ProjectBuilder::start()
+        .name("hello")
+        .version("0.1.0")
+        .no_edition()
+        .build(&t);
+
+    Scarb::quick_snapbox()
+        .arg("build")
+        .current_dir(&t)
+        .assert()
+        .success()
+        .stdout_matches(indoc! {r#"
+            warn: `edition` field not set in `[package]` section for package `hello`
+            [..] Compiling hello v0.1.0 ([..]Scarb.toml)
+            [..]  Finished `dev` profile target(s) in [..]
+        "#});
+}
+
 #[test]
 fn compile_multiple_packages() {
     let t = TempDir::new().unwrap();
@@ -354,6 +376,7 @@ fn compile_multiple_packages() {
             [package]
             name = "fib"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             decrement = { path = "decrement" }
@@ -386,6 +409,7 @@ fn compile_multiple_packages() {
             [package]
             name = "decrement"
             version = "1.0.0"
+            edition = "2023_01"
             "#,
         )
         .unwrap();
@@ -422,6 +446,7 @@ fn compile_with_nested_deps() {
             [package]
             name = "x"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             y = { path = "y" }
@@ -439,6 +464,7 @@ fn compile_with_nested_deps() {
             [package]
             name = "y"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             q = { path = "../q" }
@@ -457,6 +483,7 @@ fn compile_with_nested_deps() {
             [package]
             name = "z"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             q = { path = "../q" }
@@ -474,6 +501,7 @@ fn compile_with_nested_deps() {
             [package]
             name = "q"
             version = "1.0.0"
+            edition = "2023_01"
             "#,
         )
         .unwrap();
diff --git a/scarb/tests/build_targets.rs b/scarb/tests/build_targets.rs
index 478b1e7c1..630e1547e 100644
--- a/scarb/tests/build_targets.rs
+++ b/scarb/tests/build_targets.rs
@@ -22,6 +22,7 @@ fn compile_with_duplicate_targets_1() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
 
             [[target.example]]
 
@@ -52,6 +53,7 @@ fn compile_with_duplicate_targets_2() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
 
             [[target.example]]
             name = "x"
@@ -84,6 +86,7 @@ fn compile_with_custom_lib_target() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
 
             [lib]
             name = "not_hello"
@@ -130,6 +133,7 @@ fn compile_with_named_default_lib_target() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
 
             [lib]
             name = "not_hello"
@@ -173,6 +177,7 @@ fn compile_with_lib_target_in_target_array() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
 
             [[target.lib]]
             name = "not_hello"
diff --git a/scarb/tests/features.rs b/scarb/tests/features.rs
index 90e96b8cb..5a00ceb0a 100644
--- a/scarb/tests/features.rs
+++ b/scarb/tests/features.rs
@@ -240,9 +240,9 @@ fn features_fail_incorrect_manifest() {
             error: failed to parse manifest at: [..]/Scarb.toml
 
             Caused by:
-                TOML parse error at line 8, column 1
+                TOML parse error at line 9, column 1
                   |
-                8 | 8x = []
+                9 | 8x = []
                   | ^^
                 the name `8x` cannot be used as a package name, names cannot start with a digit
         "#})
diff --git a/scarb/tests/fmt.rs b/scarb/tests/fmt.rs
index 4fe3c8fea..ec87440d3 100644
--- a/scarb/tests/fmt.rs
+++ b/scarb/tests/fmt.rs
@@ -24,6 +24,7 @@ fn build_temp_dir(data: &str) -> TempDir {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
             "#,
         )
         .unwrap();
@@ -169,6 +170,7 @@ fn format_with_import_sorting() {
             [package]
             name = "hello"
             version = "0.1.0"
+            edition = "2023_01"
             [tool.fmt]
             sort-module-level-items = true
             "#,
diff --git a/scarb/tests/git_source.rs b/scarb/tests/git_source.rs
index 86fe2ef77..d621cc5fe 100644
--- a/scarb/tests/git_source.rs
+++ b/scarb/tests/git_source.rs
@@ -190,9 +190,9 @@ fn fetch_with_short_ssh_git() {
             error: failed to parse manifest at: [..]
 
             Caused by:
-                TOML parse error at line 6, column 7
+                TOML parse error at line 7, column 7
                   |
-                6 | dep = { git = "git@github.com:a/dep" }
+                7 | dep = { git = "git@github.com:a/dep" }
                   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                 data did not match any variant of untagged enum TomlDependency
         "#});
diff --git a/scarb/tests/local_registry.rs b/scarb/tests/local_registry.rs
index ba5ca10cc..27b789c45 100644
--- a/scarb/tests/local_registry.rs
+++ b/scarb/tests/local_registry.rs
@@ -193,7 +193,7 @@ fn publish() {
             {
                 "v": "1.0.0",
                 "deps": [],
-                "cksum": "sha256:3771f51595f7df697a822823989714b3c9a83764a67fa517ac6d8df3cfc642bf",
+                "cksum": "sha256:40c6063030324bfbaf47f23f9b2557428fecf35deb94c2dd756e2cefe89084aa",
             }
         ])
     );
@@ -206,12 +206,12 @@ fn publish() {
             {
                 "v": "1.0.0",
                 "deps": [],
-                "cksum": "sha256:07db55042bb0be41eb957d649960cd16764426ce9df1cd0729d408acdf3c63cb",
+                "cksum": "sha256:effe1d6260bc79dd77b07a65bf4d5010ce16d88847c0a08b4a74c2dfa065e37c",
             },
             {
                 "v": "1.1.0",
                 "deps": [],
-                "cksum": "sha256:bd36828fa2134ec3ce9599511404f85958d8ed091fc3b03a3f3d8426d0a0f720",
+                "cksum": "sha256:88113a5dd5996502a5b0f8dbc6809145d57af1f58ed9438cf7d217d7a73de20e",
             }
         ])
     );
@@ -271,7 +271,7 @@ fn publish_overwrites_existing() {
             {
                 "v": "1.0.0",
                 "deps": [],
-                "cksum": "sha256:b34e1202407e1a9b743f261cdc27723d0344619a6dc3058bdacd9b17f6106027",
+                "cksum": "sha256:cc09cbd0906f8387f8f02e2ed1378655fa3125eac4df2e9c2c78d2fea09a576f",
             }
         ])
     );
@@ -299,7 +299,7 @@ fn publish_overwrites_existing() {
             {
                 "v": "1.0.0",
                 "deps": [],
-                "cksum": "sha256:4682a7645acf0b342556778a0544e2871ae910efc609d89ab3bedf9491219ab5",
+                "cksum": "sha256:108fb6aca5303b97e09159eb61d6741ac2d434972a1e789f7e1daaf770faa768",
             }
         ])
     );
diff --git a/scarb/tests/remove.rs b/scarb/tests/remove.rs
index 7e400036f..15396ec16 100644
--- a/scarb/tests/remove.rs
+++ b/scarb/tests/remove.rs
@@ -10,6 +10,7 @@ fn remove_one() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -20,6 +21,7 @@ fn remove_one() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -37,6 +39,7 @@ fn multiple_deps() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -47,6 +50,7 @@ fn multiple_deps() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             foo = "1.0.0"
@@ -63,6 +67,7 @@ fn undefined_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             dep = "1.0.0"
@@ -83,6 +88,7 @@ fn no_dependencies_section() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
         "#})
         .failure()
         .stdout_matches(indoc! {r#"    Removing dep from dependencies
@@ -99,6 +105,7 @@ fn dry_run() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -107,6 +114,7 @@ fn dry_run() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dependencies]
             bar = "1.0.0"
@@ -125,6 +133,7 @@ fn remove_dev_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dev-dependencies]
             dep = "1.0.0"
@@ -135,6 +144,7 @@ fn remove_dev_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dev-dependencies]
             dep = "1.0.0"
@@ -152,6 +162,7 @@ fn remove_undefined_dev_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dev-dependencies]
             dep = "1.0.0"
@@ -161,6 +172,7 @@ fn remove_undefined_dev_dep() {
             [package]
             name = "hello"
             version = "1.0.0"
+            edition = "2023_01"
 
             [dev-dependencies]
             dep = "1.0.0"
diff --git a/utils/scarb-test-support/src/project_builder.rs b/utils/scarb-test-support/src/project_builder.rs
index 1a76303de..d62d7bdbd 100644
--- a/utils/scarb-test-support/src/project_builder.rs
+++ b/utils/scarb-test-support/src/project_builder.rs
@@ -37,7 +37,7 @@ impl ProjectBuilder {
         Self {
             name: format!("pkg{n}"),
             version: Version::new(1, n, 0),
-            edition: None,
+            edition: "2023_01".to_string().into(),
             cairo_version: None,
             src: HashMap::from_iter([(
                 Utf8PathBuf::from("src/lib.cairo"),
@@ -65,6 +65,11 @@ impl ProjectBuilder {
         self
     }
 
+    pub fn no_edition(mut self) -> Self {
+        self.edition = None;
+        self
+    }
+
     pub fn cairo_version(mut self, cairo_version: impl ToVersion) -> Self {
         self.cairo_version = Some(cairo_version.to_version().unwrap());
         self