diff --git a/.github/workflows/pamtester.yml b/.github/workflows/pamtester.yml
index aa3308d..b59bac3 100644
--- a/.github/workflows/pamtester.yml
+++ b/.github/workflows/pamtester.yml
@@ -5,7 +5,7 @@ jobs:
   pamtester:
     runs-on: ubuntu-latest
     steps:
-      - run: sudo apt install pamtester gcc make libpam-dev libkrb5-dev krb5-user
+      - run: sudo apt install pamtester gcc make libpam-dev libkrb5-dev krb5-user krb5-k5tls
       - uses: actions/checkout@v4
       - run: make
       - run: sudo make install INSTALLDIR=/usr/lib/x86_64-linux-gnu/security