diff --git a/Cargo.lock b/Cargo.lock
index 8b850a4d..245c3b26 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -700,14 +700,14 @@ dependencies = [
 
 [[package]]
 name = "serde_tokenstream"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7c49585c52c01f13c5c2ebb333f14f6885d76daa768d8a037d28017ec538c69"
+checksum = "db95b8acf6eca5bc1bc771a7d7fb1a0d1485bdef0c46eec2f573bbaf4b4118f8"
 dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "syn 2.0.119",
+ "syn 3.0.2",
 ]
 
 [[package]]
diff --git a/usdt-attr-macro/Cargo.toml b/usdt-attr-macro/Cargo.toml
index 3b7dec49..fcfc5ff0 100644
--- a/usdt-attr-macro/Cargo.toml
+++ b/usdt-attr-macro/Cargo.toml
@@ -12,7 +12,7 @@ proc-macro = true
 [dependencies]
 dtrace-parser = { path = "../dtrace-parser", version = "=0.3.0" }
 proc-macro2 = "1"
-serde_tokenstream = "0.2"
+serde_tokenstream = "0.3"
 syn = { version = "3", features = ["full"] }
 quote = "1"
 usdt-impl = { path = "../usdt-impl", default-features = false, version = "=0.6.0" }
diff --git a/usdt-macro/Cargo.toml b/usdt-macro/Cargo.toml
index 262b0c48..925249d1 100644
--- a/usdt-macro/Cargo.toml
+++ b/usdt-macro/Cargo.toml
@@ -9,7 +9,7 @@ repository = "https://github.com/oxidecomputer/usdt.git"
 [dependencies]
 dtrace-parser = { path = "../dtrace-parser", version = "=0.3.0" }
 proc-macro2 = "1"
-serde_tokenstream = "0.2"
+serde_tokenstream = "0.3"
 syn = { version = "3", features = ["full"] }
 quote = "1"
 usdt-impl = { path = "../usdt-impl", default-features = false, version = "=0.6.0" }