diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6ad83346e..a9024b15d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v3.3.0
+    rev: v3.4.0
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
diff --git a/synth.metadata b/synth.metadata
index 55b72e511..f37b36173 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -19,21 +19,21 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "18c5dbdb4ac8cf75d4d8174e7b4558f48e76f8a1"
+        "sha": "aa255b15d52b6d8950cca48cfdf58f7d27a60c8a"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "18c5dbdb4ac8cf75d4d8174e7b4558f48e76f8a1"
+        "sha": "aa255b15d52b6d8950cca48cfdf58f7d27a60c8a"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "18c5dbdb4ac8cf75d4d8174e7b4558f48e76f8a1"
+        "sha": "aa255b15d52b6d8950cca48cfdf58f7d27a60c8a"
       }
     }
   ],