diff --git a/Cargo.lock b/Cargo.lock
index fdd6cadb..89758151 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -95,7 +95,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccc0a48a9b826acdf4028595adc9db92caea352f7af011a3034acd172a52a0aa"
 dependencies = [
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -122,7 +122,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scratch",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -139,7 +139,7 @@ checksum = "34fa7e395dc1c001083c7eed28c8f0f0b5a225610f3b6284675f444af6fab86b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -260,7 +260,7 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -273,7 +273,7 @@ dependencies = [
  "quote",
  "serde",
  "serde_json",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -282,7 +282,7 @@ version = "0.1.0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -393,18 +393,18 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.51"
+version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d727cae5b39d21da60fa540906919ad737832fe0b1c165da3a34d6548c849d6"
+checksum = "78803b62cbf1f46fde80d7c0e803111524b9877184cfe7c3033659490ac7a7da"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "573015e8ab27661678357f27dc26460738fd2b6c86e46f386fde94cb5d913105"
 dependencies = [
  "proc-macro2",
 ]
@@ -423,22 +423,22 @@ checksum = "9c8132065adcfd6e02db789d9285a0deb2f3fcb04002865ab67d5fb103533898"
 
 [[package]]
 name = "serde"
-version = "1.0.155"
+version = "1.0.170"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71f2b4817415c6d4210bfe1c7bfcf4801b2d904cb4d0e1a8fdb651013c9e86b8"
+checksum = "a56657f512baabca8f840542f9ca8152aecf182c473c26e46e58d6aab4f6e439"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.155"
+version = "1.0.170"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d071a94a3fac4aff69d023a7f411e33f40f3483f8c5190b1953822b6b76d7630"
+checksum = "77d477848e6b23adba0db397777d5aad864555bc17fd9c89abb3b8009788b7b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.25",
 ]
 
 [[package]]
@@ -476,6 +476,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "15e3fc8c0c74267e2df136e5e5fb656a464158aa57624053375eb9c8c6e25ae2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.1.2"
@@ -587,7 +598,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-shared",
 ]
 
@@ -609,7 +620,7 @@ checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 4fc51b88..42d8c3e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ marine-rs-sdk-main = { path = "crates/main", version = "=0.7.1" }
 marine-timestamp-macro = { path = "crates/timestamp-macro", version = "=0.7.1" }
 polyplets = "0.3.2"
 
-serde = { version = "1.0.155", features = ["derive"]}
+serde = { version = "1.0.170", features = ["derive"]}
 
 [dev-dependencies]
 trybuild = "1.0"
diff --git a/crates/main/Cargo.toml b/crates/main/Cargo.toml
index 20e16365..4db76d44 100644
--- a/crates/main/Cargo.toml
+++ b/crates/main/Cargo.toml
@@ -20,7 +20,7 @@ doctest = false
 
 [dependencies]
 log = { version = "0.4.17", features = ["std"] }
-serde = "1.0.155"
+serde = "1.0.170"
 
 [dev-dependencies]
 simple_logger = "4.0.0" # used in doc test
diff --git a/crates/marine-macro-impl/Cargo.toml b/crates/marine-macro-impl/Cargo.toml
index 3917ec36..501e2d3b 100644
--- a/crates/marine-macro-impl/Cargo.toml
+++ b/crates/marine-macro-impl/Cargo.toml
@@ -16,7 +16,7 @@ all-features = true
 [dependencies]
 quote = "1.0.23"
 proc-macro2 = "1.0.51"
-serde = { version = "1.0.155", features = ["derive"] }
+serde = { version = "1.0.170", features = ["derive"] }
 serde_json = "1.0.94"
 syn = { version = '1.0.109', features = ['full', "extra-traits"] }