diff --git a/.github/workflows/build-docker.yml b/.github/workflows/build-docker.yml
index 8dd5d9f8d1..71d46fabd0 100644
--- a/.github/workflows/build-docker.yml
+++ b/.github/workflows/build-docker.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         target: [ release, test ]
-    runs-on: ubuntu-latest-8-cores
+    runs-on: ubuntu-latest-4-cores
     steps:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac #v4
         with:
@@ -34,12 +34,6 @@ jobs:
           docker volume ls
           df -h
 
-      - name: Install toolchain from rust-toolchain.toml
-        shell: sh
-        run: |
-          TOOLCHAIN_VERSION=$(grep 'channel =' rust-toolchain.toml | awk -F'"' '{print $2}')
-          rustup toolchain install "$TOOLCHAIN_VERSION"
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 #v3
       - name: DockerHub Login
@@ -64,7 +58,7 @@ jobs:
             type=semver,pattern={{major}},prefix=${{ matrix.target == 'test' && 'test-' || '' }},suffix=
             type=edge
 
-      - name: Configure sccache
+      - name: Configure GHA cache
         uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 #v6
         with:
           script: |