diff --git a/Cargo.lock b/Cargo.lock
index fb568a8..3ba0d0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -40,12 +40,6 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
-[[package]]
-name = "once_cell"
-version = "1.20.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
-
 [[package]]
 name = "pin-project-lite"
 version = "0.2.15"
@@ -125,29 +119,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "784e0ac535deb450455cbfa28a6f0df145ea1bb7ae51b821cf5e7927fdcfbdd0"
 dependencies = [
  "pin-project-lite",
- "tracing-attributes",
  "tracing-core",
 ]
 
-[[package]]
-name = "tracing-attributes"
-version = "0.1.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "395ae124c09f9e6918a2310af6038fba074bcf474ac352496d5910dd59a2226d"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "tracing-core"
 version = "0.1.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e672c95779cf947c5311f83787af4fa8fffd12fb27e4993211a84bdfd9610f9c"
-dependencies = [
- "once_cell",
-]
 
 [[package]]
 name = "unicode-ident"
diff --git a/Cargo.toml b/Cargo.toml
index a0bf5aa..7dd4c87 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -88,10 +88,16 @@ categories = ["development-tools::procedural-macro-helpers"]
 keywords = ["proc-macro", "nightly"]
 
 [dependencies]
-tracing = "0.1"
-syn = "2.0"
-thiserror = "2.0"
-toml_edit = "0.22"
+tracing = { version = "0.1", default-features = false }
+syn = { version = "2.0", default-features = false, features = [
+  "derive",
+  "parsing",
+] }
+thiserror = { version = "2.0", default-features = false }
+toml_edit = { version = "0.22", default-features = false, features = ["parse"] }
+
+[dev-dependencies]
+syn = { version = "2.0", default-features = false, features = ["proc-macro"] }
 
 [lints]
 workspace = true