diff --git a/Cargo.toml b/Cargo.toml
index 47edb8d3..31b5f51e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,3 +7,19 @@ members = [
 	"example-build",
 	"example-macro",
 ]
+default-members = [
+	"typify",
+	"typify-impl",
+	"typify-macro",
+	"typify-test",
+]
+
+[workspace.dependencies]
+proc-macro2 = "1.0"
+quote = "1.0"
+regress = "0.4.1"
+schemars = "0.8.10"
+serde = "1.0"
+serde_json = "1.0"
+syn = "1.0"
+typify = { path = "typify" }
diff --git a/example-build/Cargo.toml b/example-build/Cargo.toml
index 67c91028..25b77310 100644
--- a/example-build/Cargo.toml
+++ b/example-build/Cargo.toml
@@ -5,9 +5,9 @@ authors = ["Adam H. Leventhal <ahl@oxidecomputer.com>"]
 edition = "2021"
 
 [dependencies]
-serde = "1.0"
+serde = { workspace = true }
 
 [build-dependencies]
-schemars = "0.8"
-serde_json = "1.0"
-typify = { path = "../typify" }
+schemars = { workspace = true }
+serde_json = { workspace = true }
+typify = { workspace = true }
diff --git a/example-macro/Cargo.toml b/example-macro/Cargo.toml
index c96730d9..5138cea9 100644
--- a/example-macro/Cargo.toml
+++ b/example-macro/Cargo.toml
@@ -5,6 +5,6 @@ authors = ["Adam H. Leventhal <ahl@oxidecomputer.com>"]
 edition = "2021"
 
 [dependencies]
-typify = { path = "../typify" }
-serde = "1.0"
-serde_json = "1.0"
+typify = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 00000000..a41a9d04
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,8 @@
+# We use a specific toolchain revision to ensure our tests - which
+# occasionally depend on specific compiler output - remain stable
+# for all developers until the toolchain is explicitly advanced.
+# The intent is to keep this updated as new stable versions are relased.
+
+[toolchain]
+channel = "1.64.0"
+profile = "default"
diff --git a/typify-impl/Cargo.toml b/typify-impl/Cargo.toml
index 6432cbc8..353c868c 100644
--- a/typify-impl/Cargo.toml
+++ b/typify-impl/Cargo.toml
@@ -11,13 +11,13 @@ readme = "../README.md"
 [dependencies]
 heck = "0.4.0"
 log = "0.4"
-proc-macro2 = "1.0"
-quote = "1.0"
-regress = "0.4.1"
+proc-macro2 = { workspace = true }
+quote = { workspace = true }
+regress = { workspace = true }
 rustfmt-wrapper = "0.2"
-schemars = "0.8.11"
-serde_json = "1.0"
-syn = { version = "1.0", features = ["full"] }
+schemars = { workspace = true }
+serde_json = { workspace = true }
+syn = { workspace = true, features = ["full"] }
 thiserror = "1.0"
 unicode-ident = "1.0.5"
 
@@ -25,6 +25,6 @@ unicode-ident = "1.0.5"
 expectorate = "1.0"
 paste = "1.0"
 schema = "0.0.1"
-schemars = { version = "0.8.11", features = ["uuid1"] }
-serde = "1.0"
-uuid = "1.2.1"
+schemars = { workspace = true, features = ["uuid1"] }
+serde = { workspace = true }
+uuid = "1.1.2"
\ No newline at end of file
diff --git a/typify-macro/Cargo.toml b/typify-macro/Cargo.toml
index 9c28f8c0..8f1e8d1e 100644
--- a/typify-macro/Cargo.toml
+++ b/typify-macro/Cargo.toml
@@ -9,13 +9,13 @@ repository = "https://github.com/oxidecomputer/typify"
 readme = "../README.md"
 
 [dependencies]
-proc-macro2 = "1.0"
-quote = "1.0"
-schemars = "0.8.11"
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
+proc-macro2 = { workspace = true }
+quote = { workspace = true }
+schemars = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }
 serde_tokenstream = "0.1.3"
-syn = "1.0"
+syn = { workspace = true }
 typify-impl = { version = "0.0.11-dev", path = "../typify-impl" }
 
 [lib]