diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 973974a0..9a56ecee 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -269,7 +269,7 @@ jobs:
 
       - name: Running integration tests
         env:
-          RUN_PARALLEL: 4
+          RUN_PARALLEL: 2
           GOROOT: ${{ env.GOROOT_1_22_X64 }}
           CLICKHOUSE_VERSION: ${{ matrix.clickhouse }}
           # options for advanced debug CI/CD