diff --git a/substrate/Cargo.lock b/substrate/Cargo.lock
index 84584dbab9..1dc9729f06 100644
--- a/substrate/Cargo.lock
+++ b/substrate/Cargo.lock
@@ -7532,9 +7532,9 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61b3909d758bb75c79f23d4736fac9433868679d3ad2ea7a61e3c25cfda9a088"
+checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f"
 
 [[package]]
 name = "rw-stream-sink"
diff --git a/substrate/frame/support/test/Cargo.toml b/substrate/frame/support/test/Cargo.toml
index ebee4515f3..890fa86f97 100644
--- a/substrate/frame/support/test/Cargo.toml
+++ b/substrate/frame/support/test/Cargo.toml
@@ -25,7 +25,7 @@ sp-std = { version = "4.0.0", default-features = false, path = "../../../primiti
 sp-version = { version = "4.0.0-dev", default-features = false, path = "../../../primitives/version" }
 trybuild = "1.0.53"
 pretty_assertions = "1.0.0"
-rustversion = "1.0.5"
+rustversion = "1.0.6"
 frame-system = { version = "4.0.0-dev", default-features = false, path = "../../system" }
 # The "std" feature for this pallet is never activated on purpose, in order to test construct_runtime error message
 test-pallet = { package = "frame-support-test-pallet", default-features = false, path = "pallet" }
diff --git a/substrate/primitives/api/test/Cargo.toml b/substrate/primitives/api/test/Cargo.toml
index 53d26c08c1..3884534002 100644
--- a/substrate/primitives/api/test/Cargo.toml
+++ b/substrate/primitives/api/test/Cargo.toml
@@ -22,7 +22,7 @@ sc-block-builder = { version = "0.10.0-dev", path = "../../../client/block-build
 codec = { package = "parity-scale-codec", version = "2.0.0" }
 sp-state-machine = { version = "0.10.0", path = "../../state-machine" }
 trybuild = "1.0.53"
-rustversion = "1.0.5"
+rustversion = "1.0.6"
 
 [dev-dependencies]
 criterion = "0.3.0"
diff --git a/substrate/primitives/runtime-interface/Cargo.toml b/substrate/primitives/runtime-interface/Cargo.toml
index fb978fbbba..137780c3c9 100644
--- a/substrate/primitives/runtime-interface/Cargo.toml
+++ b/substrate/primitives/runtime-interface/Cargo.toml
@@ -30,7 +30,7 @@ sp-runtime-interface-test-wasm = { version = "2.0.0", path = "test-wasm" }
 sp-state-machine = { version = "0.10.0", path = "../state-machine" }
 sp-core = { version = "4.1.0-dev", path = "../core" }
 sp-io = { version = "4.0.0-dev", path = "../io" }
-rustversion = "1.0.5"
+rustversion = "1.0.6"
 trybuild = "1.0.53"
 
 [features]