diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 1c9b0da5f0..5e7847f7d3 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -3392,9 +3392,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-dns"
-version = "0.28.0"
+version = "0.28.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9712eb3e9f7dcc77cc5ca7d943b6a85ce4b1faaf91a67e003442412a26d6d6f8"
+checksum = "62e63dab8b5ff35e0c101a3e51e843ba782c07bbb1682f5fd827622e0d02b98b"
 dependencies = [
  "async-std-resolver",
  "futures 0.3.13",
@@ -10577,7 +10577,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04f8ab788026715fa63b31960869617cba39117e520eb415b0139543e325ab59"
 dependencies = [
  "cfg-if 0.1.10",
- "rand 0.7.3",
+ "rand 0.3.23",
  "static_assertions",
 ]