diff --git a/.github/workflows/identity_tests.yml b/.github/workflows/identity_tests.yml
new file mode 100644
--- /dev/null
+++ b/.github/workflows/identity_tests.yml
@@ -0,0 +1,18 @@
+name: Identity tests (Nix)
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - 'services/identity/**'
+      - 'shared/protos/identity.proto'
+
+jobs:
+  build:
+    runs-on: nixpkgs/nix-flakes
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Identity tests
+        working-directory: ./services/identity
+        run: nix develop --command cargo test