diff --git a/modules/rules_nixpkgs_core/0.12.0/MODULE.bazel b/modules/rules_nixpkgs_core/0.12.0/MODULE.bazel
new file mode 100644
index 00000000000..1c8819d4058
--- /dev/null
+++ b/modules/rules_nixpkgs_core/0.12.0/MODULE.bazel
@@ -0,0 +1,15 @@
+module(
+    name = "rules_nixpkgs_core",
+    version = "0.12.0",
+)
+
+bazel_dep(name = "platforms", version = "0.0.4")
+bazel_dep(name = "bazel_skylib", version = "1.0.3")
+
+nix_repo = use_extension("//extensions:repository.bzl", "nix_repo")
+nix_repo.github(
+    name = "nixpkgs",
+    tag = "24.05",
+    sha256 = "911314b81780f26fdaf87e17174210bdbd40c86bac1795212f257cdc236a1e78",
+)
+use_repo(nix_repo, "nixpkgs")
diff --git a/modules/rules_nixpkgs_core/0.12.0/presubmit.yml b/modules/rules_nixpkgs_core/0.12.0/presubmit.yml
new file mode 100644
index 00000000000..b0ae6e8137d
--- /dev/null
+++ b/modules/rules_nixpkgs_core/0.12.0/presubmit.yml
@@ -0,0 +1,19 @@
+bcr_test_module:
+  module_path: "testing"
+  matrix:
+    platform: ["ubuntu2204"]
+    bazel:
+      - "6.x"
+  tasks:
+    run_tests:
+      name: "Run test module"
+      platform: ${{ platform }}
+      bazel: ${{ bazel }}
+      environment:
+        # The Nix installer updates ~/.profile to set PATH. However, the Bazel
+        # CI setup seems to disregard ~/.profile. So we set PATH manually here.
+        PATH: /var/lib/buildkite-agent/.nix-profile/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+      shell_commands:
+        - curl -L https://nixos.org/nix/install | sh -s -- --no-daemon
+      test_targets:
+        - "//..."
diff --git a/modules/rules_nixpkgs_core/0.12.0/source.json b/modules/rules_nixpkgs_core/0.12.0/source.json
new file mode 100644
index 00000000000..cdebb064173
--- /dev/null
+++ b/modules/rules_nixpkgs_core/0.12.0/source.json
@@ -0,0 +1,5 @@
+{
+    "integrity": "sha256-GtsE3AQWkV/vQndX9CcsT32s7+zu78UPaDrsf36beHo=",
+    "strip_prefix": "rules_nixpkgs-0.12.0/core",
+    "url": "https://github.com/tweag/rules_nixpkgs/releases/download/v0.12.0/rules_nixpkgs-0.12.0.tar.gz"
+}
diff --git a/modules/rules_nixpkgs_core/metadata.json b/modules/rules_nixpkgs_core/metadata.json
index 0f2c0ffedc8..111f248081d 100644
--- a/modules/rules_nixpkgs_core/metadata.json
+++ b/modules/rules_nixpkgs_core/metadata.json
@@ -17,7 +17,8 @@
     ],
     "versions": [
         "0.10.0",
-        "0.11.1"
+        "0.11.1",
+        "0.12.0"
     ],
     "yanked_versions": {}
 }