diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9fbbc06..18ae261 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -60,6 +60,5 @@ jobs:
           cargo llvm-cov --workspace --all-features --codecov --output-path target/codecov.json
       - uses: codecov/codecov-action@v5
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
           files: target/codecov.json
           fail_ci_if_error: true
diff --git a/Cargo.toml b/Cargo.toml
index d767148..fdf50f3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,8 @@
 [workspace]
 members = ["crates/*"]
 resolver = "2"
+
+[workspace.dependencies]
+heck = "0.5.0"
+http = "1.4.0"
+regex = "1.12.2"
diff --git a/crates/const-str-proc-macro/Cargo.toml b/crates/const-str-proc-macro/Cargo.toml
index 519effb..6f5531d 100644
--- a/crates/const-str-proc-macro/Cargo.toml
+++ b/crates/const-str-proc-macro/Cargo.toml
@@ -17,9 +17,9 @@ rust-version = "1.65.0"
 proc-macro = true
 
 [dependencies]
-syn = "2.0.2"
-quote = "1.0.21"
-regex = { version = "1.7.0", optional = true }
-http = { version = "1.0.0", optional = true }
+heck = { workspace = true, optional = true }
+http = { workspace = true, optional = true }
 proc-macro2 = "1.0.47"
-heck = { version = "0.5.0", optional = true }
+quote = "1.0.21"
+regex = { workspace = true, optional = true }
+syn = "2.0.2"
diff --git a/crates/const-str/Cargo.toml b/crates/const-str/Cargo.toml
index 70bd150..ab9d1e4 100644
--- a/crates/const-str/Cargo.toml
+++ b/crates/const-str/Cargo.toml
@@ -11,28 +11,26 @@ categories = ["text-processing", "no-std"]
 readme = "README.md"
 rust-version = "1.77.0"
 
+[package.metadata.docs.rs]
+all-features = true
+rustdoc-args = ["--cfg", "docsrs"]
+
 [features]
 default = []
 std = []
 proc = ["dep:const-str-proc-macro"]
-regex = ["proc", "const-str-proc-macro?/regex"]
+regex = ["proc", "const-str-proc-macro?/regex", "dep:regex"]
 http = ["proc", "const-str-proc-macro?/http", "dep:http"]
-case = ["proc", "const-str-proc-macro?/heck"]
+case = ["proc", "const-str-proc-macro?/heck", "dep:heck"]
 all = ["std", "proc", "regex", "http", "case"]
 unstable = []
 
-[package.metadata.docs.rs]
-all-features = true
-rustdoc-args = ["--cfg", "docsrs"]
-
 [dependencies]
-http = { version = "1.0.0", optional = true }
+heck = { workspace = true, optional = true }
+http = { workspace = true, optional = true }
+regex = { workspace = true, optional = true }
 
 [dependencies.const-str-proc-macro]
 version = "1.0.0"
 path = "../const-str-proc-macro"
 optional = true
-
-[dev-dependencies]
-regex = "1.7.0"
-heck = "0.5.0"
diff --git a/crates/const-str/src/__ctfe/ascii_case.rs b/crates/const-str/src/__ctfe/ascii_case.rs
index a21eb07..d1a6588 100644
--- a/crates/const-str/src/__ctfe/ascii_case.rs
+++ b/crates/const-str/src/__ctfe/ascii_case.rs
@@ -346,6 +346,7 @@ macro_rules! convert_ascii_case {
 
 #[cfg(test)]
 mod tests {
+    #[cfg(feature = "case")]
     #[test]
     fn test_conv_ascii_case() {
         macro_rules! test_conv_ascii_case {