diff --git a/socials_util/__init__.py b/socials_util/__init__.py
index bcddf9f..3df567e 100644
--- a/socials_util/__init__.py
+++ b/socials_util/__init__.py
@@ -439,7 +439,7 @@ def determine_social_from_url_internally(
 
     # Regexes
     for social_site_url_regex, social_site_id in REGEXES:
-        if m := re.fullmatch(social_site_url_regex, url, re.I):
+        if m := re.fullmatch(social_site_url_regex, url, re.IGNORECASE):
             groups = m.groups()
             username_or_id = groups[0] if len(groups) > 0 else None
             if username_or_id in DISALLOWED_IDENTIFIERS: