diff --git a/.github/workflows/cachix.yaml b/.github/workflows/cachix.yaml
index 3edb139..43c658e 100644
--- a/.github/workflows/cachix.yaml
+++ b/.github/workflows/cachix.yaml
@@ -1,5 +1,8 @@
 name: "Cachix build"
-on: [push]
+on:
+  push:
+    tags:
+      - v*
 jobs:
   build:
     runs-on: ubuntu-latest