diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bf541472504..a8299c98b5a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -325,7 +325,7 @@ jobs:
           done
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-8-cores
     needs: [set-image, check]
     defaults:
       run:
@@ -465,7 +465,7 @@ jobs:
 ### examples
 
   examples-test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-8-cores
     needs: [set-image, clippy]
     defaults:
       run:
diff --git a/.github/workflows/measurements.yml b/.github/workflows/measurements.yml
index 913e94acef8..02cdf9c971c 100644
--- a/.github/workflows/measurements.yml
+++ b/.github/workflows/measurements.yml
@@ -73,4 +73,5 @@ jobs:
       - uses: actions/upload-artifact@v3
         with:
           name: ${{ github.job }}-data
-          path: ./artifacts
\ No newline at end of file
+          path: ./artifacts
+
diff --git a/.github/workflows/submit-contract-sizes.yml b/.github/workflows/submit-contract-sizes.yml
index 1c3e5ca79e2..04a49f8d943 100644
--- a/.github/workflows/submit-contract-sizes.yml
+++ b/.github/workflows/submit-contract-sizes.yml
@@ -1,8 +1,8 @@
 # The workflow has write access, so it needs to be isolated for security reasons from pull request-based workflows,
 # which may be triggered from forked repositories.
-on: 
+on:
   workflow_run:
-    workflows: 
+    workflows:
       - continuous-integration
     types:
       - completed
@@ -60,4 +60,4 @@ jobs:
           # Submit the comparison table as a comment to the PR
           echo "Submitting contract sizes diff to ${PR_COMMENTS_URL}"
           GITHUB_PR_TOKEN=${GITHUB_PR_TOKEN} scripts/contract_sizes_submit.sh ${PR_COMMENTS_URL} ${WORKFLOW_URL} ${CARGO_CONTRACT_VERSION} < ./contract_sizes_diff.md
-              
\ No newline at end of file
+