diff --git a/ci/build-image.yaml b/ci/build-image.yaml
index 4b626e9566f949b45636442a86f6558a10e36b0c..e552f65ee1882232f50290ab1f597a0c118066ba 100644
--- a/ci/build-image.yaml
+++ b/ci/build-image.yaml
@@ -1,7 +1,7 @@
 build_image:
   tags:
     - docker
-  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.32.4"
+  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.33.0"
   stage: build-image
   rules:
     - if: ($YAOOK_K8S_CI_IMAGE_TAG == null) || ($YAOOK_K8S_CI_IMAGE_TAG == "")
@@ -34,7 +34,7 @@ build_image:
 
 
 .deploy_image:
-  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.32.4"
+  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.33.0"
   stage: tag-image
   before_script:
     - |
diff --git a/ci/unit-tests.yaml b/ci/unit-tests.yaml
index 0eefab7cf53410a24237095ac83e7f6cffc4e724..6e925110ec85f5193ab8e65a8f063ab4831ed22a 100644
--- a/ci/unit-tests.yaml
+++ b/ci/unit-tests.yaml
@@ -1,5 +1,5 @@
 test-nix-yk8s:
-  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.32.4"
+  image: "${CI_DEPENDENCY_PROXY_DIRECT_GROUP_IMAGE_PREFIX}/nixos/nix:2.33.0"
   stage: unit-tests
   variables:
     NIX_CONFIG: |
diff --git a/docs/_releasenotes/2229.chore.nixos-nix-updated-to-2.33.0 b/docs/_releasenotes/2229.chore.nixos-nix-updated-to-2.33.0
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391