diff --git a/Cargo.lock b/Cargo.lock
index 7b8fe9faeeb8..9b7a2a4afafe 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1170,9 +1170,9 @@ checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "syn"
-version = "2.0.101"
+version = "2.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
+checksum = "e4307e30089d6fd6aff212f2da3a1f9e32f3223b1f010fb09b7c95f90f3ca1e8"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/glib-macros/Cargo.toml b/glib-macros/Cargo.toml
index df8c9e036cbe..99cca35fbcd3 100644
--- a/glib-macros/Cargo.toml
+++ b/glib-macros/Cargo.toml
@@ -16,7 +16,7 @@ version.workspace = true
 heck = "0.5"
 proc-macro2 = "1.0"
 quote = "1.0"
-syn = { version = "2.0.101", features = ["full"] }
+syn = { version = "2.0.103", features = ["full"] }
 proc-macro-crate = "3.3"
 
 [lib]