diff --git a/.travis.yml b/.travis.yml
index 0ff4a69..8bd74bc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,5 +19,6 @@ script:
 
 after_success:
   - if [ -n "${CACHIX_CACHE}" ]; then cachix push "${CACHIX_CACHE}" $outs; fi
-  - curl -XPOST "https://nur-update.herokuapp.com/update?repo=${NUR_REPO}"
+  - if [ "false" = "${TRAVIS_PULL_REQUEST}" -a "master" = "${TRAVIS_BRANCH}" ]; then
+      curl -XPOST "https://nur-update.herokuapp.com/update?repo=${NUR_REPO}"; fi