diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9cc73df..7baee9c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -44,6 +44,7 @@ jobs:
           python-version: ${{ matrix.python }}
         
       - name: upgrade pip
+        if: ${{ matrix.os == 'ubuntu-latest' }}
         run: python3 -m pip install --upgrade pip
 
       - name: pip install development dependencies