diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index a441d19..8aab6aa 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -1,12 +1,23 @@
 on: [push]
 
 jobs:
-  test1:
+  build-images:
     runs-on: host-arch-x86_64
+    steps:
+      - name: Clone repository
+        run: git clone --revision ${{ gitea.sha }} --depth 1 ${{ gitea.server_url }}/${{ gitea.repository }}
+
+      - name: Build GCC container
+        run: docker build -t local/alpine-gcc:latest -f Dockerfile
+
+  run-tests:
+    runs-on: host-arch-x86_64
+    needs: build-images
+    #container: local/alpine-gcc:latest
     steps:
       - name: Clone repository
         run: git clone --revision ${{ gitea.sha }} --depth 1 ${{ gitea.server_url }}/${{ gitea.repository }}
 
       - name: Run tests
         working-directory: test5
-        run: ./test.sh
+        run: docker run -it --rm -v test5:/app local/alpine-gcc:latest
diff --git a/Dockerfile b/Dockerfile
index a54b105..6fea225 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,8 @@
 FROM alpine:latest
 
 RUN apk add gcc
+
 RUN mkdir /app
-
-COPY *.c /app/
-COPY test.sh /
-RUN chmod +x "test.sh"
-
 WORKDIR /app
 
-ENTRYPOINT ["/test.sh"]
+ENTRYPOINT ["test.sh"]