diff --git a/Cargo.lock b/Cargo.lock
index 2cba9310d..e9b83bdfc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -346,7 +346,7 @@ checksum = "0e97ce7de6cf12de5d7226c73f5ba9811622f4db3a5b91b55c53e987e5f91cba"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -389,7 +389,7 @@ checksum = "a564d521dd56509c4c47480d00b80ee55f7e385ae48db5744c67ad50c92d2ebf"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -529,7 +529,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -640,7 +640,7 @@ dependencies = [
  "regex",
  "rustc-hash",
  "shlex",
- "syn 2.0.26",
+ "syn 2.0.27",
  "which",
 ]
 
@@ -928,7 +928,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -1472,7 +1472,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -1525,7 +1525,7 @@ checksum = "5e9a1f9f7d83e59740248a6e14ecf93929ade55027844dfcea78beafccc15745"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -1795,7 +1795,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -2797,7 +2797,7 @@ version = "0.1.0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -3484,7 +3484,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -3720,7 +3720,7 @@ checksum = "ec2e072ecce94ec471b13398d5402c188e76ac03cf74dd1a975161b23a3f6d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -3830,7 +3830,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92139198957b410250d43fad93e630d956499a625c527eda65175c8680f83387"
 dependencies = [
  "proc-macro2",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -4494,7 +4494,7 @@ checksum = "389894603bd18c46fa56231694f8d827779c0951a667087194cf9de94ed24682"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -4814,9 +4814,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.26"
+version = "2.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45c3457aacde3c65315de5031ec191ce46604304d2446e803d71ade03308d970"
+checksum = "b60f673f44a8255b9c8c657daf66a596d435f2da81a555b06dc644d080ba45e0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4867,7 +4867,7 @@ version = "0.1.0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -4893,7 +4893,7 @@ checksum = "463fe12d7993d3b327787537ce8dd4dfa058de32fc2b195ef3cde03dc4771e8f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -5056,7 +5056,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -5218,7 +5218,7 @@ checksum = "5f4f31f56159e98206da9efd823404b79b6ef3143b4a7ab76e67b1751b25a4ab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
@@ -5529,7 +5529,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
  "wasm-bindgen-shared",
 ]
 
@@ -5563,7 +5563,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6074,7 +6074,7 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.26",
+ "syn 2.0.27",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 4bf5b125d..720d0622f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -132,7 +132,7 @@ sketching = { path = "./libs/sketching" }
 smartstring = "^1.0.1"
 smolset = "^1.3.1"
 sshkeys = "^0.3.1"
-syn = { version = "2.0.26", features = ["full"] }
+syn = { version = "2.0.27", features = ["full"] }
 testkit-macros = { path = "./server/testkit-macros" }
 time = { version = "^0.3.21", features = ["formatting", "local-offset"] }