diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8f87c816488..4fc1ebe05b7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -242,7 +242,7 @@ jobs:
           # `pnpm test` runs `scripts/test-parallel.mjs`, which spawns multiple Node processes.
           # Default heap limits have been too low on Linux CI (V8 OOM near 4GB).
           echo "OPENCLAW_TEST_WORKERS=2" >> "$GITHUB_ENV"
-          echo "OPENCLAW_TEST_MAX_OLD_SPACE_SIZE_MB=6144" >> "$GITHUB_ENV"
+          echo "OPENCLAW_TEST_MAX_OLD_SPACE_SIZE_MB=8192" >> "$GITHUB_ENV"
           if [ -n "$SHARD_COUNT" ] && [ -n "$SHARD_INDEX" ]; then
             echo "OPENCLAW_TEST_SHARDS=$SHARD_COUNT" >> "$GITHUB_ENV"
             echo "OPENCLAW_TEST_SHARD_INDEX=$SHARD_INDEX" >> "$GITHUB_ENV"
@@ -487,7 +487,7 @@ jobs:
         run: |
           # Keep the compatibility lane aligned with the default Node test lane.
           echo "OPENCLAW_TEST_WORKERS=2" >> "$GITHUB_ENV"
-          echo "OPENCLAW_TEST_MAX_OLD_SPACE_SIZE_MB=6144" >> "$GITHUB_ENV"
+          echo "OPENCLAW_TEST_MAX_OLD_SPACE_SIZE_MB=8192" >> "$GITHUB_ENV"
 
       - name: Build under Node 22
         run: pnpm build
@@ -608,7 +608,7 @@ jobs:
     runs-on: blacksmith-32vcpu-windows-2025
     timeout-minutes: 45
     env:
-      NODE_OPTIONS: --max-old-space-size=6144
+      NODE_OPTIONS: --max-old-space-size=8192
       # Keep total concurrency predictable on the 32 vCPU runner.
       # Windows shard 2 has shown intermittent instability at 2 workers.
       OPENCLAW_TEST_WORKERS: 1