diff --git a/dev_gpt/apis/pypi.py b/dev_gpt/apis/pypi.py
index a712695..55663ba 100644
--- a/dev_gpt/apis/pypi.py
+++ b/dev_gpt/apis/pypi.py
@@ -60,8 +60,11 @@ def clean_requirements_txt(previous_microservice_path):
     updated_requirements = []
 
     for line in requirements_txt.split('\n'):
+        # replace comment at the end of the line
+        pattern = r'#.+'
+        line = re.sub(pattern, '', line)
         line = line.strip()
-        if not line or line.startswith('#'):
+        if not line:
             continue
 
         split = re.split(r'==|>=|<=|>|<|~=', line)
diff --git a/test/unit/test_api.py b/test/unit/test_api.py
index 60b898b..03a2bd0 100644
--- a/test/unit/test_api.py
+++ b/test/unit/test_api.py
@@ -58,6 +58,8 @@ requests
 streamlit
 # invalid version 1.0beta5prerelease
 google-api-python-client
+# with comment
+language-tool-python==2.5.3  # requires Java
 """
     requirements_clean = """\
 jina==111.222.333
@@ -67,7 +69,8 @@ pydub~=0.25.1
 pdfminer.six~=20201018
 requests~=2.26.0
 streamlit~=0.89.0
-google-api-python-client~=2.23.0"""
+google-api-python-client~=2.23.0
+language-tool-python==2.5.3"""
     requirements_txt_path = os.path.join(tmpdir, "requirements.txt")
     with open(requirements_txt_path, "w", encoding="utf-8") as f:
         f.write(requirements_content)