diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7d5c517..f951f02 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,4 +5,4 @@ build-job:
   stage: build
   script:
     - nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/nixpkgs-unstable.tar.gz -A sops-install-secrets.tests
-    - nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/nixos-21.05.tar.gz -A sops-install-secrets.tests
+    - nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs/archive/nixos-21.11.tar.gz -A sops-install-secrets.tests