diff --git a/Cargo.lock b/Cargo.lock
index 8ee8eb03..07ef5b62 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2897,7 +2897,7 @@ dependencies = [
  "rand_xorshift",
  "rcgen",
  "ring 0.16.20",
- "rustls 0.20.9",
+ "rustls 0.21.12",
  "sc-network",
  "sc-utils 17.0.0",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index 53341116..54bd256f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,7 +57,7 @@ static_assertions = "1.1.0"
 
 # Exposed dependencies. Breaking changes to these are breaking changes to us.
 [dependencies.rustls]
-version = "0.20.7"
+version = "0.21.12"
 default-features = false
 features = ["dangerous_configuration"] # Must enable this to allow for custom verification code.