diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c5c44d0d..97c8ac75 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -28,3 +28,9 @@ jobs:
       - run: echo "::error::Test failed"
       - run: echo "It works :rocket:" >> $GITHUB_STEP_SUMMARY
       - run: tests/annotate.sh >> $GITHUB_STEP_SUMMARY
+  build-tw-gcc-next:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: CI Tumbleweed
+        run: ci/ci-build-tumbleweed
diff --git a/ci/images/ci-openSUSE-tumbleweed-x86_64/Dockerfile b/ci/images/ci-openSUSE-tumbleweed-x86_64/Dockerfile
index 554745de..9f92303a 100644
--- a/ci/images/ci-openSUSE-tumbleweed-x86_64/Dockerfile
+++ b/ci/images/ci-openSUSE-tumbleweed-x86_64/Dockerfile
@@ -27,7 +27,10 @@ RUN zypper install -y --no-recommends glibc-devel-static libblkid-devel-static \
 
 RUN zypper install -y --no-recommends libgcrypt-devel libsodium-devel libkcapi-devel \
 	   libbotan-devel libopenssl-3-devel
-RUN zypper install -y --no-recommends gcc14
+
+RUN zypper -n --gpg-auto-import-keys ar --no-gpgcheck --refresh https://download.opensuse.org/repositories/devel:/gcc:/next/openSUSE_Tumbleweed/ tw-oss
+RUN zypper install -y --allow-vendor-change gcc15
+RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-15 15
 
 COPY ./test-build .
 COPY ./run-tests .