diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index 26c2b83..b47a9ff 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -1,6 +1,6 @@
 name: Python package
 
-on: [push, pull_request]
+on: push
 
 jobs:
   build:
@@ -8,9 +8,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-13, ubuntu-latest]
-        python-version: ["3.12", "3.13"]
-        bitcoind-version: ["28.3", "29.2"]
+        os: [ubuntu-latest]
+        python-version: ["3.12"]
+        bitcoind-version: ["28.3"]
 
     steps:
       - uses: actions/checkout@v3