diff --git a/.github/workflows/mt.yml b/.github/workflows/mt.yml
index 7c3098ce..ce8efd52 100644
--- a/.github/workflows/mt.yml
+++ b/.github/workflows/mt.yml
@@ -29,14 +29,14 @@ jobs:
 
       - name: Download Infection
         run: |
-          wget https://github.com/infection/infection/releases/download/0.26.19/infection.phar
+          wget https://github.com/infection/infection/releases/download/0.28.1/infection.phar
           chmod +x infection.phar
 
       - name: Run Infection for added files only
         if: github.event_name == 'pull_request'
         run: |
           git fetch --depth=1 origin $GITHUB_BASE_REF
-          php infection.phar -j8 --git-diff-filter=A --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered
+          php infection.phar -j8 --git-diff-lines --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered
 
       - name: Run Infection for all files
         if: github.event_name == 'push'