diff --git a/Cargo.lock b/Cargo.lock
index 7a5ef8e09ae7b..72b4374122fa4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11144,9 +11144,9 @@ checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
 
 [[package]]
 name = "syn"
-version = "1.0.82"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8daf5dd0bb60cbd4137b1b587d2fc0ae729bc07cf01cd70b36a1ed5ade3b9d59"
+checksum = "a07e33e919ebcd69113d5be0e4d70c5707004ff45188910106854f38b960df4a"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/client/chain-spec/derive/Cargo.toml b/client/chain-spec/derive/Cargo.toml
index 8cb5db5e42d91..84c319383a83f 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 = "1.1.3"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
-syn = "1.0.82"
+syn = "1.0.94"
 
 [dev-dependencies]
diff --git a/client/tracing/proc-macro/Cargo.toml b/client/tracing/proc-macro/Cargo.toml
index b55c3482be3f4..df46dd6e5810d 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 = "1.1.3"
 proc-macro2 = "1.0.37"
 quote = { version = "1.0.10", features = ["proc-macro"] }
-syn = { version = "1.0.82", features = ["proc-macro", "full", "extra-traits", "parsing"] }
+syn = { version = "1.0.94", features = ["proc-macro", "full", "extra-traits", "parsing"] }
diff --git a/frame/election-provider-support/solution-type/Cargo.toml b/frame/election-provider-support/solution-type/Cargo.toml
index a4e7256127115..4fdc7a21db0e1 100644
--- a/frame/election-provider-support/solution-type/Cargo.toml
+++ b/frame/election-provider-support/solution-type/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.82", features = ["full", "visit"] }
+syn = { version = "1.0.94", features = ["full", "visit"] }
 quote = "1.0"
 proc-macro2 = "1.0.37"
 proc-macro-crate = "1.1.3"
diff --git a/frame/staking/reward-curve/Cargo.toml b/frame/staking/reward-curve/Cargo.toml
index dd8361ece6386..d28e34cd9afd3 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 = "1.0.82", features = ["full", "visit"] }
+syn = { version = "1.0.94", features = ["full", "visit"] }
 quote = "1.0.10"
 proc-macro2 = "1.0.37"
 proc-macro-crate = "1.1.3"
diff --git a/frame/support/procedural/Cargo.toml b/frame/support/procedural/Cargo.toml
index 8f7438710dfdb..225b19548617e 100644
--- a/frame/support/procedural/Cargo.toml
+++ b/frame/support/procedural/Cargo.toml
@@ -19,7 +19,7 @@ frame-support-procedural-tools = { version = "4.0.0-dev", path = "./tools" }
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 Inflector = "0.11.4"
-syn = { version = "1.0.82", features = ["full"] }
+syn = { version = "1.0.94", features = ["full"] }
 
 [features]
 default = ["std"]
diff --git a/frame/support/procedural/tools/Cargo.toml b/frame/support/procedural/tools/Cargo.toml
index 00c453b1f1928..c2cacd2e0c433 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 = "3.0.0", path = "./derive" }
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
-syn = { version = "1.0.82", features = ["full", "visit", "extra-traits"] }
+syn = { version = "1.0.94", features = ["full", "visit", "extra-traits"] }
 proc-macro-crate = "1.1.3"
diff --git a/frame/support/procedural/tools/derive/Cargo.toml b/frame/support/procedural/tools/derive/Cargo.toml
index 8d536be1cb725..5abb1c730ad49 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 = "1.0.37"
 quote = { version = "1.0.10", features = ["proc-macro"] }
-syn = { version = "1.0.82", features = ["proc-macro" ,"full", "extra-traits", "parsing"] }
+syn = { version = "1.0.94", features = ["proc-macro" ,"full", "extra-traits", "parsing"] }
diff --git a/primitives/api/proc-macro/Cargo.toml b/primitives/api/proc-macro/Cargo.toml
index 24ce1360c80f7..bfaceb4ca3c60 100644
--- a/primitives/api/proc-macro/Cargo.toml
+++ b/primitives/api/proc-macro/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.10"
-syn = { version = "1.0.82", features = ["full", "fold", "extra-traits", "visit"] }
+syn = { version = "1.0.94", features = ["full", "fold", "extra-traits", "visit"] }
 proc-macro2 = "1.0.37"
 blake2 = { version = "0.10.2", default-features = false }
 proc-macro-crate = "1.1.3"
diff --git a/primitives/core/hashing/proc-macro/Cargo.toml b/primitives/core/hashing/proc-macro/Cargo.toml
index 9a5f991d04362..fcd0a008d34d5 100644
--- a/primitives/core/hashing/proc-macro/Cargo.toml
+++ b/primitives/core/hashing/proc-macro/Cargo.toml
@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0.82", features = ["full", "parsing"] }
+syn = { version = "1.0.94", features = ["full", "parsing"] }
 quote = "1.0.6"
 proc-macro2 = "1.0.37"
 sp-core-hashing = { version = "4.0.0", path = "../", default-features = false }
diff --git a/primitives/debug-derive/Cargo.toml b/primitives/debug-derive/Cargo.toml
index 5852bd428d3e7..d8027138b309e 100644
--- a/primitives/debug-derive/Cargo.toml
+++ b/primitives/debug-derive/Cargo.toml
@@ -18,7 +18,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.10"
-syn = "1.0.82"
+syn = "1.0.94"
 proc-macro2 = "1.0"
 
 [features]
diff --git a/primitives/runtime-interface/proc-macro/Cargo.toml b/primitives/runtime-interface/proc-macro/Cargo.toml
index 3c66f371b7a0c..d4749c65694b8 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 = "1.0.82", features = ["full", "visit", "fold", "extra-traits"] }
+syn = { version = "1.0.94", features = ["full", "visit", "fold", "extra-traits"] }
 quote = "1.0.10"
 proc-macro2 = "1.0.37"
 Inflector = "0.11.4"
diff --git a/primitives/version/proc-macro/Cargo.toml b/primitives/version/proc-macro/Cargo.toml
index b9ab7cee0ad2c..e0d09942e0569 100644
--- a/primitives/version/proc-macro/Cargo.toml
+++ b/primitives/version/proc-macro/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 
 [dependencies]
 quote = "1.0.10"
-syn = { version = "1.0.82", features = ["full", "fold", "extra-traits", "visit"] }
+syn = { version = "1.0.94", features = ["full", "fold", "extra-traits", "visit"] }
 proc-macro2 = "1.0.37"
 codec = { package = "parity-scale-codec", version = "3.0.0", features = [ "derive" ] }
 
diff --git a/test-utils/derive/Cargo.toml b/test-utils/derive/Cargo.toml
index afa729c5163e9..86545044dc5b7 100644
--- a/test-utils/derive/Cargo.toml
+++ b/test-utils/derive/Cargo.toml
@@ -10,7 +10,7 @@ description = "Substrate test utilities macros"
 
 [dependencies]
 quote = "1.0.10"
-syn = { version = "1.0.82", features = ["full"] }
+syn = { version = "1.0.94", features = ["full"] }
 proc-macro-crate = "1.1.3"
 proc-macro2 = "1.0.37"