diff --git a/src/analyze-action-env.test.ts b/src/analyze-action-env.test.ts
index c26a92882c..c39f31d766 100644
--- a/src/analyze-action-env.test.ts
+++ b/src/analyze-action-env.test.ts
@@ -24,6 +24,9 @@ setupTests(test);
 // but the first test would fail.
 
 test("analyze action with RAM & threads from environment variables", async (t) => {
+  // This test frequently times out on Windows with the default timeout, so we bump
+  // it a bit to 20s.
+  t.timeout(1000 * 20);
   await util.withTmpDir(async (tmpDir) => {
     process.env["GITHUB_SERVER_URL"] = util.GITHUB_DOTCOM_URL;
     process.env["GITHUB_REPOSITORY"] = "github/codeql-action-fake-repository";
diff --git a/src/analyze-action-input.test.ts b/src/analyze-action-input.test.ts
index f4bf046daa..1f8017e10e 100644
--- a/src/analyze-action-input.test.ts
+++ b/src/analyze-action-input.test.ts
@@ -24,6 +24,7 @@ setupTests(test);
 // but the first test would fail.
 
 test("analyze action with RAM & threads from action inputs", async (t) => {
+  t.timeout(1000 * 20);
   await util.withTmpDir(async (tmpDir) => {
     process.env["GITHUB_SERVER_URL"] = util.GITHUB_DOTCOM_URL;
     process.env["GITHUB_REPOSITORY"] = "github/codeql-action-fake-repository";