diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 3d7609e2dea42daab9d8e47a632b56351ba2bd79..98c4bdba242311a9e7f16ddcc93f887caeac6029 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -11616,9 +11616,9 @@ version = "1.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if 0.1.10",
  "digest 0.10.3",
- "rand 0.8.5",
+ "rand 0.7.3",
  "static_assertions",
 ]
 
@@ -12641,9 +12641,9 @@ dependencies = [
 
 [[package]]
 name = "yamux"
-version = "0.10.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c0608f53c1dc0bad505d03a34bbd49fbf2ad7b51eb036123e896365532745a1"
+checksum = "e5d9ba232399af1783a58d8eb26f6b5006fbefe2dc9ef36bd283324792d03ea5"
 dependencies = [
  "futures",
  "log",