diff --git a/.github/workflows/update-nix-assets-hash.yaml b/.github/workflows/update-nix-assets-hash.yaml
index c629e9841..47aaf0ffa 100644
--- a/.github/workflows/update-nix-assets-hash.yaml
+++ b/.github/workflows/update-nix-assets-hash.yaml
@@ -12,6 +12,9 @@ on:
 permissions:
   contents: write
 
+concurrency:
+  group: nix-update
+
 jobs:
   update:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/update-nix-pnpm-deps-hash.yaml b/.github/workflows/update-nix-pnpm-deps-hash.yaml
index 57d6da776..afae6ee2d 100644
--- a/.github/workflows/update-nix-pnpm-deps-hash.yaml
+++ b/.github/workflows/update-nix-pnpm-deps-hash.yaml
@@ -11,6 +11,9 @@ on:
 permissions:
   contents: write
 
+concurrency:
+  group: nix-update
+
 jobs:
   update:
     runs-on: ubuntu-latest