diff --git a/Cargo.lock b/Cargo.lock
index 32159c6936666..677d26318c01c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9180,9 +9180,9 @@ checksum = "343f3f510c2915908f155e94f17220b19ccfacf2a64a2a5d8004f2c3e311e7fd"
 
 [[package]]
 name = "syn"
-version = "1.0.58"
+version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc60a3d73ea6594cd712d830cc1f0390fd71542d8c8cd24e70cc54cdfd5e05d5"
+checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/client/chain-spec/derive/Cargo.toml b/client/chain-spec/derive/Cargo.toml
index 09196c125b7dd..97b668cc4210c 100644
--- a/client/chain-spec/derive/Cargo.toml
+++ b/client/chain-spec/derive/Cargo.toml
@@ -18,6 +18,6 @@ proc-macro = true
 proc-macro-crate = "0.1.4"
 proc-macro2 = "1.0.6"
 quote = "1.0.3"
-syn = "1.0.58"
+syn = "1.0.64"
 
 [dev-dependencies]
diff --git a/client/tracing/proc-macro/Cargo.toml b/client/tracing/proc-macro/Cargo.toml
index e2f4cf14435ba..d1e8788607adc 100644
--- a/client/tracing/proc-macro/Cargo.toml
+++ b/client/tracing/proc-macro/Cargo.toml
@@ -18,4 +18,4 @@ proc-macro = true
 proc-macro-crate = "0.1.4"
 proc-macro2 = "1.0.6"
 quote = { version = "1.0.3", features = ["proc-macro"] }
-syn = { version = "1.0.58", features = ["proc-macro", "full", "extra-traits", "parsing"] }
+syn = { version = "1.0.64", features = ["proc-macro", "full", "extra-traits", "parsing"] }
diff --git a/frame/staking/reward-curve/Cargo.toml b/frame/staking/reward-curve/Cargo.toml
index 9d2564522cd92..88b56e8fd0715 100644
--- a/frame/staking/reward-curve/Cargo.toml
+++ b/frame/staking/reward-curve/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.58", features = ["full", "visit"] }
+syn = { version = "1.0.64", features = ["full", "visit"] }
 quote = "1.0.3"
 proc-macro2 = "1.0.6"
 proc-macro-crate = "0.1.4"
diff --git a/frame/support/procedural/Cargo.toml b/frame/support/procedural/Cargo.toml
index 3d829afb0ca3f..8d637a5b95748 100644
--- a/frame/support/procedural/Cargo.toml
+++ b/frame/support/procedural/Cargo.toml
@@ -19,7 +19,7 @@ frame-support-procedural-tools = { version = "2.0.0", path = "./tools" }
 proc-macro2 = "1.0.6"
 quote = "1.0.3"
 Inflector = "0.11.4"
-syn = { version = "1.0.58", features = ["full"] }
+syn = { version = "1.0.64", features = ["full"] }
 
 [features]
 default = ["std"]
diff --git a/frame/support/procedural/tools/Cargo.toml b/frame/support/procedural/tools/Cargo.toml
index 0c8b9249b5cac..378eaa7d4e6bb 100644
--- a/frame/support/procedural/tools/Cargo.toml
+++ b/frame/support/procedural/tools/Cargo.toml
@@ -15,5 +15,5 @@ targets = ["x86_64-unknown-linux-gnu"]
 frame-support-procedural-tools-derive = { version = "2.0.0", path = "./derive" }
 proc-macro2 = "1.0.6"
 quote = "1.0.3"
-syn = { version = "1.0.58", features = ["full", "visit"] }
+syn = { version = "1.0.64", features = ["full", "visit"] }
 proc-macro-crate = "0.1.5"
diff --git a/frame/support/procedural/tools/derive/Cargo.toml b/frame/support/procedural/tools/derive/Cargo.toml
index 0ec72f1388e03..a0fcfebc810e5 100644
--- a/frame/support/procedural/tools/derive/Cargo.toml
+++ b/frame/support/procedural/tools/derive/Cargo.toml
@@ -17,4 +17,4 @@ proc-macro = true
 [dependencies]
 proc-macro2 = "1.0.6"
 quote = { version = "1.0.3", features = ["proc-macro"] }
-syn = { version = "1.0.58", features = ["proc-macro" ,"full", "extra-traits", "parsing"] }
+syn = { version = "1.0.64", features = ["proc-macro" ,"full", "extra-traits", "parsing"] }
diff --git a/primitives/api/proc-macro/Cargo.toml b/primitives/api/proc-macro/Cargo.toml
index 98ca45081c1e3..0994aa5aa9c8c 100644
--- a/primitives/api/proc-macro/Cargo.toml
+++ b/primitives/api/proc-macro/Cargo.toml
@@ -18,7 +18,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.3"
-syn = { version = "1.0.58", features = ["full", "fold", "extra-traits", "visit"] }
+syn = { version = "1.0.64", features = ["full", "fold", "extra-traits", "visit"] }
 proc-macro2 = "1.0.6"
 blake2-rfc = { version = "0.2.18", default-features = false }
 proc-macro-crate = "0.1.4"
diff --git a/primitives/debug-derive/Cargo.toml b/primitives/debug-derive/Cargo.toml
index f72842b19615e..617d9189a75b5 100644
--- a/primitives/debug-derive/Cargo.toml
+++ b/primitives/debug-derive/Cargo.toml
@@ -18,7 +18,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.3"
-syn = "1.0.58"
+syn = "1.0.64"
 proc-macro2 = "1.0"
 
 [features]
diff --git a/primitives/npos-elections/compact/Cargo.toml b/primitives/npos-elections/compact/Cargo.toml
index 7383dd67d5939..24142e0bd4968 100644
--- a/primitives/npos-elections/compact/Cargo.toml
+++ b/primitives/npos-elections/compact/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.58", features = ["full", "visit"] }
+syn = { version = "1.0.64", features = ["full", "visit"] }
 quote = "1.0"
 proc-macro2 = "1.0.6"
 proc-macro-crate = "0.1.4"
diff --git a/primitives/runtime-interface/proc-macro/Cargo.toml b/primitives/runtime-interface/proc-macro/Cargo.toml
index a63247758c3a0..a1dfb8833360d 100644
--- a/primitives/runtime-interface/proc-macro/Cargo.toml
+++ b/primitives/runtime-interface/proc-macro/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.58", features = ["full", "visit", "fold", "extra-traits"] }
+syn = { version = "1.0.64", features = ["full", "visit", "fold", "extra-traits"] }
 quote = "1.0.3"
 proc-macro2 = "1.0.3"
 Inflector = "0.11.4"
diff --git a/test-utils/derive/Cargo.toml b/test-utils/derive/Cargo.toml
index 1fb1db555f490..f2317a67c0fb6 100644
--- a/test-utils/derive/Cargo.toml
+++ b/test-utils/derive/Cargo.toml
@@ -10,7 +10,7 @@ description = "Substrate test utilities macros"
 
 [dependencies]
 quote = "1.0.6"
-syn = { version = "1.0.58", features = ["full"] }
+syn = { version = "1.0.64", features = ["full"] }
 proc-macro-crate = "0.1.4"
 
 [lib]