diff --git a/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php b/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php
index 8e6024d846..cac8a0ea18 100644
--- a/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php
+++ b/src/Symfony/Component/Cache/Adapter/TagAwareAdapter.php
@@ -350,7 +350,7 @@ class TagAwareAdapter implements TagAwareAdapterInterface, PruneableInterface, R
                 continue;
             }
             $version -= $this->knownTagVersions[$tag][1];
-            if ((0 !== $version && 1 !== $version) || $this->knownTagVersionsTtl > $now - $this->knownTagVersions[$tag][0]) {
+            if ((0 !== $version && 1 !== $version) || $now - $this->knownTagVersions[$tag][0] >= $this->knownTagVersionsTtl) {
                 // reuse previously fetched tag versions up to the ttl, unless we are storing items or a potential miss arises
                 $fetchTagVersions = true;
             } else {
diff --git a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
index 5bd2ffc287..c8677d5e28 100644
--- a/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
+++ b/src/Symfony/Component/Cache/Tests/Adapter/TagAwareAdapterTest.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Cache\Tests\Adapter;
 
 use PHPUnit\Framework\MockObject\MockObject;
+use Psr\Cache\CacheItemInterface;
 use Symfony\Component\Cache\Adapter\AdapterInterface;
 use Symfony\Component\Cache\Adapter\FilesystemAdapter;
 use Symfony\Component\Cache\Adapter\TagAwareAdapter;
@@ -160,6 +161,39 @@ class TagAwareAdapterTest extends AdapterTestCase
         $this->assertFalse($cache->prune());
     }
 
+    public function testKnownTagVersionsTtl()
+    {
+        $itemsPool = new FilesystemAdapter('', 10);
+        $tagsPool = $this
+            ->getMockBuilder(AdapterInterface::class)
+            ->getMock();
+
+        $pool = new TagAwareAdapter($itemsPool, $tagsPool, 10);
+
+        $item = $pool->getItem('foo');
+        $item->tag(['baz']);
+        $item->expiresAfter(100);
+
+        $tag = $this->getMockBuilder(CacheItemInterface::class)->getMock();
+        $tag->expects(self::exactly(2))->method('get')->willReturn(10);
+
+        $tagsPool->expects(self::exactly(2))->method('getItems')->willReturn([
+            'baz'.TagAwareAdapter::TAGS_PREFIX => $tag,
+        ]);
+
+        $pool->save($item);
+        $this->assertTrue($pool->getItem('foo')->isHit());
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        sleep(20);
+
+        $this->assertTrue($pool->getItem('foo')->isHit());
+
+        sleep(5);
+
+        $this->assertTrue($pool->getItem('foo')->isHit());
+    }
+
     /**
      * @return MockObject|PruneableCacheInterface
      */