diff --git a/Cargo.lock b/Cargo.lock
index 2719fda7a..64259c9a3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -94,7 +94,7 @@ dependencies = [
  "rustc-hash",
  "serde",
  "serde_derive",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -133,7 +133,7 @@ dependencies = [
  "prettyplease",
  "rustc-hash",
  "serde_json",
- "syn",
+ "syn 2.0.118",
  "timezone_provider",
  "zerovec",
 ]
@@ -221,7 +221,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -289,7 +289,7 @@ checksum = "6834770958c7b84223607e49758ec0dde273c4df915e734aad50f62968a4c134"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
  "synstructure",
 ]
 
@@ -306,7 +306,7 @@ dependencies = [
  "diplomat_core",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -339,7 +339,7 @@ dependencies = [
  "pulldown-cmark",
  "quote",
  "serde",
- "syn",
+ "syn 2.0.118",
  "syn-inline-mod",
  "toml",
 ]
@@ -357,7 +357,7 @@ dependencies = [
  "serde",
  "smallvec",
  "strck",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -368,7 +368,7 @@ checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -688,12 +688,12 @@ dependencies = [
 
 [[package]]
 name = "prettyplease"
-version = "0.2.37"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "479ca8adacdd7ce8f1fb39ce9ecccbfe93a3f1344b3d0d97f20bc0196208f62b"
+checksum = "2bfe0f4c752e450fc2faf62654f1c134747922825d5b04ca717b8874f41a40c0"
 dependencies = [
  "proc-macro2",
- "syn",
+ "syn 3.0.3",
 ]
 
 [[package]]
@@ -782,7 +782,7 @@ checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -851,6 +851,16 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "3.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53e9bae58849f64dfa4f5d5ae372c8341f7305f82a3868709269343628b659a3"
+dependencies = [
+ "proc-macro2",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn-inline-mod"
 version = "0.6.0"
@@ -858,7 +868,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fa6dca1fdb7b2ed46dd534a326725419d4fb10f23d8c85a8b2860e5eb25d0f9"
 dependencies = [
  "proc-macro2",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -869,7 +879,7 @@ checksum = "728a70f3dbaf5bab7f0c4b1ac8d7ae5ea60a4b5549c8a5914361c99147a709d2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -1051,7 +1061,7 @@ dependencies = [
  "log",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
  "wasm-bindgen-shared",
 ]
 
@@ -1073,7 +1083,7 @@ checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1118,7 +1128,7 @@ checksum = "a47fddd13af08290e67f4acabf4b459f647552718f683a7b415d290ac744a836"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -1129,7 +1139,7 @@ checksum = "bd9211b69f8dcdfa817bfd14bf1c97c9188afa36f4750130fcdf3f400eca9fa8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
@@ -1272,7 +1282,7 @@ checksum = "de844c262c8848816172cef550288e7dc6c7b7814b4ee56b3e1553f275f1858e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
  "synstructure",
 ]
 
@@ -1293,7 +1303,7 @@ checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
  "synstructure",
 ]
 
@@ -1333,7 +1343,7 @@ checksum = "625dc425cab0dca6dc3c3319506e6593dcb08a9f387ea3b284dbd52a92c40555"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.118",
 ]
 
 [[package]]
diff --git a/tools/bakeddata/Cargo.toml b/tools/bakeddata/Cargo.toml
index c77539346..30c35c3e0 100644
--- a/tools/bakeddata/Cargo.toml
+++ b/tools/bakeddata/Cargo.toml
@@ -12,7 +12,7 @@ publish = false
 
 [dependencies]
 databake.workspace = true
-prettyplease = "0.2.37"
+prettyplease = "0.3.0"
 serde_json = "1.0.145"
 syn = "2.0.106"
 timezone_provider = { workspace = true, features = ["datagen"] }