diff --git a/test/tap/fileAppender-test.js b/test/tap/fileAppender-test.js
index e7a79347..964942c8 100644
--- a/test/tap/fileAppender-test.js
+++ b/test/tap/fileAppender-test.js
@@ -151,7 +151,7 @@ test('log4js fileAppender', (batch) => {
     logger.info('This is an intermediate log message.');
     logger.info('This is the second log message.');
     // wait for the file system to catch up
-    await sleep(100);
+    await sleep(250);
     const fileContents = await fs.readFile(testFile, 'utf8');
     t.match(fileContents, 'This is the second log message.');
     t.equal(fileContents.indexOf('This is the first log message.'), -1);
diff --git a/test/tap/multiprocess-shutdown-test.js b/test/tap/multiprocess-shutdown-test.js
index e46fede7..e62cf765 100644
--- a/test/tap/multiprocess-shutdown-test.js
+++ b/test/tap/multiprocess-shutdown-test.js
@@ -4,7 +4,7 @@ const childProcess = require('child_process');
 const sandbox = require('@log4js-node/sandboxed-module');
 const log4js = require('../../lib/log4js');
 
-test('multiprocess appender shutdown (master)', { timeout: 5000 }, (t) => {
+test('multiprocess appender shutdown (master)', { timeout: 10000 }, (t) => {
   log4js.configure({
     appenders: {
       stdout: { type: 'stdout' },