diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 24e873b..91f87c3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,10 +16,11 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - 3.7
-          - 3.8
-          - 3.9
-          - '3.10'
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
+          - "3.14"
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python v${{ matrix.python-version }}
@@ -43,9 +44,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-        name: Install Python v3.8
+        name: Install Python v3.13
         with:
-          python-version: 3.8
+          python-version: 3.13
       - name: Build sdist
         run: python setup.py sdist
       - uses: actions/upload-artifact@v2
@@ -60,9 +61,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-        name: Install Python v3.8
+        name: Install Python v3.13
         with:
-          python-version: 3.8
+          python-version: 3.13
       - name: Install wheel
         run: python -m pip install --upgrade wheel
       - name: Build wheel
diff --git a/pre_commit_po_hooks/untranslated_messages.py b/pre_commit_po_hooks/untranslated_messages.py
index 1b3af42..c4d1ee6 100644
--- a/pre_commit_po_hooks/untranslated_messages.py
+++ b/pre_commit_po_hooks/untranslated_messages.py
@@ -91,14 +91,14 @@ def main():
         "-m",
         "--min",
         type=str,
-        metavar="N/N%",
+        metavar="N/N%%",
         required=False,
         default=None,
         dest="min",
         help=(
             "Minimum messages translated in each PO file to be considered valid."
             " You can pass either a float number optionally ending in a character"
-            " % to indicate that is a percentage of the total of translated"
+            " %% to indicate that is a percentage of the total of translated"
             " entries in each PO file."
         ),
     )