diff --git a/src/process/exec.test.ts b/src/process/exec.test.ts
index 5129ea0c3c..6b6c881bc9 100644
--- a/src/process/exec.test.ts
+++ b/src/process/exec.test.ts
@@ -41,7 +41,7 @@ describe("runCommandWithTimeout", () => {
       [process.execPath, "-e", "setTimeout(() => {}, 10_000)"],
       {
         timeoutMs: 5_000,
-        noOutputTimeoutMs: 80,
+        noOutputTimeoutMs: 70,
       },
     );
 
@@ -55,7 +55,7 @@ describe("runCommandWithTimeout", () => {
       [
         process.execPath,
         "-e",
-        'let i=0; const t=setInterval(() => { process.stdout.write("."); i += 1; if (i >= 3) { clearInterval(t); process.exit(0); } }, 15);',
+        'let i=0; const t=setInterval(() => { process.stdout.write("."); i += 1; if (i >= 2) { clearInterval(t); process.exit(0); } }, 10);',
       ],
       {
         timeoutMs: 5_000,
@@ -66,14 +66,14 @@ describe("runCommandWithTimeout", () => {
     expect(result.code).toBe(0);
     expect(result.termination).toBe("exit");
     expect(result.noOutputTimedOut).toBe(false);
-    expect(result.stdout.length).toBeGreaterThanOrEqual(3);
+    expect(result.stdout.length).toBeGreaterThanOrEqual(2);
   });
 
   it("reports global timeout termination when overall timeout elapses", async () => {
     const result = await runCommandWithTimeout(
       [process.execPath, "-e", "setTimeout(() => {}, 10_000)"],
       {
-        timeoutMs: 40,
+        timeoutMs: 30,
       },
     );
 
diff --git a/src/process/supervisor/supervisor.test.ts b/src/process/supervisor/supervisor.test.ts
index c22efcd5ba..d6e7d42abe 100644
--- a/src/process/supervisor/supervisor.test.ts
+++ b/src/process/supervisor/supervisor.test.ts
@@ -26,7 +26,7 @@ describe("process supervisor", () => {
       mode: "child",
       argv: [process.execPath, "-e", "setTimeout(() => {}, 10_000)"],
       timeoutMs: 5_000,
-      noOutputTimeoutMs: 55,
+      noOutputTimeoutMs: 45,
       stdinMode: "pipe-closed",
     });
     const exit = await run.wait();