diff --git a/src/change_url/change_url.py b/src/change_url/change_url.py
index a83d854..aa2a1ab 100644
--- a/src/change_url/change_url.py
+++ b/src/change_url/change_url.py
@@ -91,7 +91,7 @@ def get_url_mapping(urls_with_context, template_type):
 
 
 def extract_urls(text):
-    pattern = r'(?:\n|^)\s*([^\n]*?)\s*(https?://[\w\.-]+)'
+    pattern = r'(?:\n|^)\s*([^\n]*?)\s*(https?://[\w\.-]+(?::\d+)?)'
     # pattern = r'(?:\n|^)\s*([^\n]*?)\s*(https?://[^\s]+)'
     url_list = re.findall(pattern, text)
     url_type, is_agent = get_url_type(text, url_list)