diff --git a/Cargo.lock b/Cargo.lock
index 2f2b4aa7cf35d..a630e3207e7f5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6480,10 +6480,11 @@ dependencies = [
 
 [[package]]
 name = "proc-macro-crate"
-version = "1.1.3"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e17d47ce914bf4de440332250b0edd23ce48c005f59fab39d3335866b114f11a"
+checksum = "eda0fc3b0fb7c975631757e14d9049da17374063edb6ebbcbc54d880d4fe94e9"
 dependencies = [
+ "once_cell",
  "thiserror",
  "toml",
 ]
diff --git a/client/chain-spec/derive/Cargo.toml b/client/chain-spec/derive/Cargo.toml
index d733bda9b1692..4e349d2a1a3f2 100644
--- a/client/chain-spec/derive/Cargo.toml
+++ b/client/chain-spec/derive/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 syn = "1.0.98"
diff --git a/client/tracing/proc-macro/Cargo.toml b/client/tracing/proc-macro/Cargo.toml
index 031f1fe49d970..db1e52046e526 100644
--- a/client/tracing/proc-macro/Cargo.toml
+++ b/client/tracing/proc-macro/Cargo.toml
@@ -15,7 +15,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 proc-macro = true
 
 [dependencies]
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = { version = "1.0.10", features = ["proc-macro"] }
 syn = { version = "1.0.98", 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 5a0c46cb83a0d..f0ee8c7ce3fca 100644
--- a/frame/election-provider-support/solution-type/Cargo.toml
+++ b/frame/election-provider-support/solution-type/Cargo.toml
@@ -18,7 +18,7 @@ proc-macro = true
 syn = { version = "1.0.98", features = ["full", "visit"] }
 quote = "1.0"
 proc-macro2 = "1.0.37"
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 
 [dev-dependencies]
 parity-scale-codec = "3.0.0"
diff --git a/frame/staking/reward-curve/Cargo.toml b/frame/staking/reward-curve/Cargo.toml
index c761517ea6829..fcf6d7777ebbc 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]
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 syn = { version = "1.0.98", features = ["full", "visit"] }
diff --git a/frame/support/procedural/tools/Cargo.toml b/frame/support/procedural/tools/Cargo.toml
index 755483f7db9aa..32d52b631e082 100644
--- a/frame/support/procedural/tools/Cargo.toml
+++ b/frame/support/procedural/tools/Cargo.toml
@@ -12,7 +12,7 @@ description = "Proc macro helpers for procedural macros"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 syn = { version = "1.0.98", features = ["full", "visit", "extra-traits"] }
diff --git a/primitives/api/proc-macro/Cargo.toml b/primitives/api/proc-macro/Cargo.toml
index 8acc15d6a0591..559297cf2b972 100644
--- a/primitives/api/proc-macro/Cargo.toml
+++ b/primitives/api/proc-macro/Cargo.toml
@@ -20,7 +20,7 @@ quote = "1.0.10"
 syn = { version = "1.0.98", features = ["full", "fold", "extra-traits", "visit"] }
 proc-macro2 = "1.0.37"
 blake2 = { version = "0.10.4", default-features = false }
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 
 # Required for the doc tests
 [features]
diff --git a/primitives/runtime-interface/proc-macro/Cargo.toml b/primitives/runtime-interface/proc-macro/Cargo.toml
index 9bc7161012cb1..a1201ddeec2b7 100644
--- a/primitives/runtime-interface/proc-macro/Cargo.toml
+++ b/primitives/runtime-interface/proc-macro/Cargo.toml
@@ -17,7 +17,7 @@ proc-macro = true
 
 [dependencies]
 Inflector = "0.11.4"
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 syn = { version = "1.0.98", features = ["full", "visit", "fold", "extra-traits"] }
diff --git a/test-utils/derive/Cargo.toml b/test-utils/derive/Cargo.toml
index b55ace822ceb3..9f82becc48337 100644
--- a/test-utils/derive/Cargo.toml
+++ b/test-utils/derive/Cargo.toml
@@ -10,7 +10,7 @@ description = "Substrate test utilities macros"
 publish = false
 
 [dependencies]
-proc-macro-crate = "1.1.3"
+proc-macro-crate = "1.2.1"
 proc-macro2 = "1.0.37"
 quote = "1.0.10"
 syn = { version = "1.0.98", features = ["full"] }