diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4121e392ae8c..5cc239f8f538 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,10 +50,10 @@ jobs:
       matrix:
         include:
           - name: mingw-check
-            os: ubuntu-20.04-16core-64gb
+            os: ubuntu-20.04-4core-16gb
             env: {}
           - name: mingw-check-tidy
-            os: ubuntu-20.04-16core-64gb
+            os: ubuntu-20.04-4core-16gb
             env: {}
           - name: x86_64-gnu-llvm-15
             os: ubuntu-20.04-16core-64gb
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index 6efc1980e60e..17108cbbfb0c 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -318,10 +318,10 @@ jobs:
       matrix:
         include:
           - name: mingw-check
-            <<: *job-linux-16c
+            <<: *job-linux-4c
 
           - name: mingw-check-tidy
-            <<: *job-linux-16c
+            <<: *job-linux-4c
 
           - name: x86_64-gnu-llvm-15
             <<: *job-linux-16c