diff --git a/apps/github-runner/github-runner.yaml b/apps/github-runner/github-runner.yaml
index d9af771..886da73 100644
--- a/apps/github-runner/github-runner.yaml
+++ b/apps/github-runner/github-runner.yaml
@@ -1726,13 +1726,17 @@ spec:
                   key: credential
             - name: RUN_AS_ROOT
               value: "false"
+          # Bumped 2026-05-25: previous 4Gi limit caused OOMKill (exit 137)
+          # mid-`dotnet test` on TtsReader's 1000+ test suite. PR #21 CI flapped
+          # twice with "runner lost communication" before the K8s side
+          # symptoms surfaced. 8Gi gives ~30% headroom over peak observed.
           resources:
             requests:
               cpu: "500m"
-              memory: "1Gi"
+              memory: "2Gi"
             limits:
               cpu: "2000m"
-              memory: "4Gi"
+              memory: "8Gi"
           volumeMounts:
             - name: runner-home
               mountPath: /home/runner