diff --git a/core/tests/Drupal/KernelTests/Core/Cache/ChainedFastBackendTest.php b/core/tests/Drupal/KernelTests/Core/Cache/ChainedFastBackendTest.php
index 9bd5165e99..0d036aa056 100644
--- a/core/tests/Drupal/KernelTests/Core/Cache/ChainedFastBackendTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Cache/ChainedFastBackendTest.php
@@ -82,7 +82,7 @@ class MarkAsOutdatedChainedFastBackend extends ChainedFastBackend {
    * @param $timestamp
    */
   public function setLastWriteTimestamp($timestamp) {
-    $this->lastWriteTimestamp = $timestamp + 0.01;
+    $this->lastWriteTimestamp = $timestamp + 0.1;
   }
 
 }