diff --git a/.github/workflows/actions.yaml b/.github/workflows/test_treegp.yaml
similarity index 88%
rename from .github/workflows/actions.yaml
rename to .github/workflows/test_treegp.yaml
index 659f370..433e511 100644
--- a/.github/workflows/actions.yaml
+++ b/.github/workflows/test_treegp.yaml
@@ -1,6 +1,12 @@
-name: CI
-
-on: [push]
+name: test-treegp
+
+on:
+  push:
+    branches:
+      - "master"
+  pull_request:
+    branches:
+      - "**"
 
 jobs:
   build:
diff --git a/requirements.txt b/requirements.txt
index 8e83bb9..16bd7e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-setuptools<=47.3.1
+setuptools>=65.5.1
 numpy>=1.16.5
 scipy
 iminuit>1.3,<1.4; python_version < '3.0'  # iminuit 1.4 fails on python 2.7.