diff --git a/requirements_test.txt b/requirements_test.txt
index c81f2f83dc..0f7d376255 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -2,7 +2,7 @@ pylint==4.1.2
 flake8==7.4.1  # .pre-commit-config.yaml rev synced by script/sync_dependency_versions.py
 ruff==0.16.10  # .pre-commit-config.yaml rev synced by script/sync_dependency_versions.py
 pyupgrade==3.21.2  # .pre-commit-config.yaml rev synced by script/sync_dependency_versions.py
-prek==0.5.4  # .github/workflows/ci.yml reads this pin
+prek==0.5.5  # .github/workflows/ci.yml reads this pin
 yamlrocks==0.6.1  # used by script/sync_dependency_versions.py
 
 # Unit tests