diff --git a/tests/ci/git_helper.py b/tests/ci/git_helper.py
index 5c02ea53cf8..50414ffb470 100644
--- a/tests/ci/git_helper.py
+++ b/tests/ci/git_helper.py
@@ -93,7 +93,7 @@ class Git:
         if value == "":
             return
         if not self._tag_pattern.match(value):
-            raise Exception(f"last tag {value} doesn't match the pattern")
+            raise ValueError(f"last tag {value} doesn't match the pattern")
 
     @property
     def latest_tag(self) -> str:
diff --git a/tests/ci/version_helper.py b/tests/ci/version_helper.py
index 7db96cfde7c..ecccc250e33 100755
--- a/tests/ci/version_helper.py
+++ b/tests/ci/version_helper.py
@@ -150,6 +150,9 @@ class ClickHouseVersion:
 
         return False
 
+    def __le__(self, other: "ClickHouseVersion") -> bool:
+        return self == other or self < other
+
 
 class VersionType:
     LTS = "lts"