diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 9cd73c2..264b718 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -14,6 +14,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Update apt
+        run: sudo apt-get update
       - name: Install ldap dependencies
         run: sudo apt-get install libldap2-dev libsasl2-dev
       - uses: actions/checkout@v2