diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8c26fd34..3ed008db 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -69,14 +69,13 @@ jobs:
           else
             git submodule update --remote Pillow
           fi
-          (cd Pillow && git checkout main)
-          sudo chown -R 1001 "$(pwd)"
+          cd Pillow && git checkout main
 
       - name: Test Image Build
         if: "matrix.test-image"
         run: |
           cd "${{ matrix.test-image }}"
-          make pull || (sudo chmod a+w . && make update && make build BRANCH=main)
+          make pull || (make update && make build BRANCH=main)
         env:
           DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
           DOCKER_ARGS: ${{ matrix.docker-args }}
@@ -84,7 +83,7 @@ jobs:
       - name: Build image
         id: build
         run: |
-          cd "${{ matrix.image }}" && sudo chmod a+w . && make update
+          cd "${{ matrix.image }}" && make update
           if [[ -n "$DOCKER_USERNAME" ]]; then
             echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin && echo "logged_in=true" >> "$GITHUB_OUTPUT"
           fi
@@ -113,10 +112,6 @@ jobs:
         env:
           DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
 
-      - name: Post build
-        if: always()
-        run: sudo chown -R "$(id -u)" "$(pwd)"
-
   # The valgrind suite is slow, so build its image once, test it across
   # parallel split jobs, and push only after every split has passed.
   build-valgrind:
@@ -176,8 +171,7 @@ jobs:
       - name: Prepare test
         run: |
           git submodule update --remote Pillow
-          (cd Pillow && git checkout main)
-          sudo chown -R 1001 "$(pwd)"
+          cd Pillow && git checkout main
 
       - name: Load image
         run: |
@@ -197,10 +191,6 @@ jobs:
           SPLIT_INDEX: ${{ matrix.split }}
           SPLIT_COUNT: ${{ strategy.job-total }}
 
-      - name: Post test
-        if: always()
-        run: sudo chown -R "$(id -u)" "$(pwd)"
-
   push-valgrind:
     name: Push ubuntu-24.04-noble-amd64-valgrind
     needs: test-valgrind