diff --git a/Cargo.toml b/Cargo.toml
index af3f371d..b0a1f25a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,11 +18,5 @@ edition = "2021"
 publish = false
 
 [workspace.dependencies]
-# libcnb has a much bigger impact on buildpack behaviour than any other dependencies,
-# so it's pinned to an exact version to isolate it from lockfile refreshes.
-libcnb = "=0.15.0"
-libcnb-test = "=0.15.0"
-libherokubuildpack = "=0.15.0"
-toml = "0.8"
 buildpacks-jvm-shared = { path = "shared" }
 buildpacks-jvm-shared-test = { path = "shared-test" }
diff --git a/buildpacks/gradle/Cargo.toml b/buildpacks/gradle/Cargo.toml
index 953fa593..9880d788 100644
--- a/buildpacks/gradle/Cargo.toml
+++ b/buildpacks/gradle/Cargo.toml
@@ -6,13 +6,13 @@ edition.workspace = true
 publish.workspace = true
 
 [dependencies]
-libcnb.workspace = true
-libherokubuildpack.workspace = true
-serde = { version = "1", features = ["derive"] }
 buildpacks-jvm-shared.workspace = true
-nom = "7"
 indoc = "2"
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"
+nom = "7"
+serde = { version = "1", features = ["derive"] }
 
 [dev-dependencies]
-libcnb-test.workspace = true
 buildpacks-jvm-shared-test.workspace = true
+libcnb-test = "=0.15.0"
diff --git a/buildpacks/jvm-function-invoker/Cargo.toml b/buildpacks/jvm-function-invoker/Cargo.toml
index 3892d235..6ba1f49c 100644
--- a/buildpacks/jvm-function-invoker/Cargo.toml
+++ b/buildpacks/jvm-function-invoker/Cargo.toml
@@ -7,15 +7,15 @@ publish.workspace = true
 
 [dependencies]
 indoc = "2"
-libcnb.workspace = true
-libherokubuildpack.workspace = true
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"
 serde = "1"
 thiserror = "1"
-toml.workspace = true
+toml = "0.8"
 
 [dev-dependencies]
-tempfile = "3"
-libcnb-test.workspace = true
-ureq = "2"
 base64 = "0.21"
 buildpacks-jvm-shared-test.workspace = true
+libcnb-test = "=0.15.0"
+tempfile = "3"
+ureq = "2"
diff --git a/buildpacks/jvm/Cargo.toml b/buildpacks/jvm/Cargo.toml
index 7f4abd8a..45dd1913 100644
--- a/buildpacks/jvm/Cargo.toml
+++ b/buildpacks/jvm/Cargo.toml
@@ -9,13 +9,13 @@ publish.workspace = true
 buildpacks-jvm-shared.workspace = true
 fs_extra = "1"
 indoc = "2"
-libcnb.workspace = true
-libherokubuildpack.workspace = true
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"
 serde = { version = "1", features = ["derive"] }
 tempfile = "3"
 ureq = "2"
 url = "2"
 
 [dev-dependencies]
-libcnb-test.workspace = true
 buildpacks-jvm-shared-test.workspace = true
+libcnb-test = "=0.15.0"
diff --git a/buildpacks/maven/Cargo.toml b/buildpacks/maven/Cargo.toml
index 8bd3e633..bcbb6ced 100644
--- a/buildpacks/maven/Cargo.toml
+++ b/buildpacks/maven/Cargo.toml
@@ -9,8 +9,8 @@ publish.workspace = true
 buildpacks-jvm-shared.workspace = true
 flate2 = "1"
 indoc = "2"
-libcnb.workspace = true
-libherokubuildpack.workspace = true
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"
 regex = "1"
 serde = { version = "1", features = ["derive"] }
 shell-words = "1"
@@ -18,6 +18,6 @@ tar = "0.4"
 tempfile = "3"
 
 [dev-dependencies]
-libcnb-test.workspace = true
-java-properties = "2"
 buildpacks-jvm-shared-test.workspace = true
+java-properties = "2"
+libcnb-test = "=0.15.0"
diff --git a/buildpacks/sbt/Cargo.toml b/buildpacks/sbt/Cargo.toml
index 95263369..a44f8b48 100644
--- a/buildpacks/sbt/Cargo.toml
+++ b/buildpacks/sbt/Cargo.toml
@@ -6,18 +6,18 @@ edition.workspace = true
 publish.workspace = true
 
 [dependencies]
-libcnb.workspace = true
-libherokubuildpack.workspace = true
+buildpacks-jvm-shared.workspace = true
 indoc = "2"
 java-properties = "2"
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"
+semver = { version = "1", features = ["serde"] }
 serde = { version = "1", features = ["derive"] }
+shell-words = "1"
 tempfile = "3"
 thiserror = "1"
-semver = { version = "1", features = ["serde"] }
-shell-words = "1"
-buildpacks-jvm-shared.workspace = true
 
 [dev-dependencies]
-libcnb-test.workspace = true
 buildpacks-jvm-shared-test.workspace = true
+libcnb-test = "=0.15.0"
 ureq = "2"
diff --git a/shared-test/Cargo.toml b/shared-test/Cargo.toml
index 8fe7fd26..ee66bd35 100644
--- a/shared-test/Cargo.toml
+++ b/shared-test/Cargo.toml
@@ -6,6 +6,6 @@ edition.workspace = true
 publish.workspace = true
 
 [dependencies]
-ureq = "2"
 exponential-backoff = "1"
-libcnb-test.workspace = true
+libcnb-test = "=0.15.0"
+ureq = "2"
diff --git a/shared/Cargo.toml b/shared/Cargo.toml
index 8d90ae88..cc9ad463 100644
--- a/shared/Cargo.toml
+++ b/shared/Cargo.toml
@@ -7,6 +7,6 @@ publish.workspace = true
 
 [dependencies]
 indoc = "2"
-libherokubuildpack.workspace = true
-libcnb.workspace = true
 java-properties = "2"
+libcnb = "=0.15.0"
+libherokubuildpack = "=0.15.0"