diff --git a/Cargo.lock b/Cargo.lock
index f5422a6237..175b867b11 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3459,7 +3459,7 @@ dependencies = [
  "move-model",
  "move-stackless-bytecode",
  "once_cell",
- "parking_lot 0.12.1",
+ "parking_lot 0.11.1",
  "semver 1.0.14",
  "similar",
  "solana_rbpf",
diff --git a/language/tools/move-mv-llvm-compiler/Cargo.toml b/language/tools/move-mv-llvm-compiler/Cargo.toml
index bf5983d293..99bea2ad5e 100644
--- a/language/tools/move-mv-llvm-compiler/Cargo.toml
+++ b/language/tools/move-mv-llvm-compiler/Cargo.toml
@@ -12,7 +12,7 @@ anyhow = "1.0.52"
 colored = "2.0.0"
 libc = "0.2"
 once_cell = "1.10"
-parking_lot = "0.12"
+parking_lot = "0.11"
 
 move-bytecode-verifier = { path = "../../move-bytecode-verifier" }
 move-bytecode-source-map = { path = "../../move-ir-compiler/move-bytecode-source-map" }