diff --git a/files/helpers/regex.py b/files/helpers/regex.py
index 6b21e68b69..02e9653009 100644
--- a/files/helpers/regex.py
+++ b/files/helpers/regex.py
@@ -59,8 +59,8 @@ snappy_youtube_regex = re.compile('<lite-youtube videoid="(.+?)" params="autopla
 
 email_regex = re.compile(EMAIL_REGEX_PATTERN, flags=re.A)
 
-utm_regex = re.compile('utm_[0-z]+=[0-z_]+&', flags=re.A)
-utm_regex2 = re.compile('[?&]utm_[0-z]+=[0-z_]+', flags=re.A)
+utm_regex = re.compile('utm_[0-z]+=[0-z_.]+&', flags=re.A)
+utm_regex2 = re.compile('[?&]utm_[0-z]+=[0-z_.]+', flags=re.A)
 
 slur_regex = re.compile(f"<[^>]*>|{slur_single_words}", flags=re.I|re.A)
 slur_regex_upper = re.compile(f"<[^>]*>|{slur_single_words.upper()}", flags=re.A)