diff --git a/detect_secrets/plugins/slack.py b/detect_secrets/plugins/slack.py
index 80dab5fbb..81bab0c2c 100644
--- a/detect_secrets/plugins/slack.py
+++ b/detect_secrets/plugins/slack.py
@@ -18,7 +18,7 @@ class SlackDetector(RegexBasedDetector):
 
     denylist = (
         # Slack Token
-        re.compile(r'xox(?:a|b|p|o|s|r)-(?:\d+-)+[a-z0-9]+', flags=re.IGNORECASE),
+        re.compile(r'(xwfp|xapp|xox(?:a|b|c|p|o|s|r))-(?:\d+-)+[a-z0-9]+', flags=re.IGNORECASE),
         # Slack Webhooks
         re.compile(
             r'https://hooks\.slack\.com/services/T[a-zA-Z0-9_]+/B[a-zA-Z0-9_]+/[a-zA-Z0-9_]+',
diff --git a/tests/plugins/slack_test.py b/tests/plugins/slack_test.py
index a242c9ef2..4aed6c7ba 100644
--- a/tests/plugins/slack_test.py
+++ b/tests/plugins/slack_test.py
@@ -29,6 +29,15 @@ class TestSlackDetector:
             (
                 'xoxb-34532454-e039d02840a0b9379c'
             ),
+            (
+                'xoxc-1111111111-111111111111-1111111111111-11111111111111111'
+            ),
+            (
+                'xwfp-523423-234243-234233-e039d02840a0b9379c'
+            ),
+            (
+                'xapp-523423-234243-234233-e039d02840a0b9379c'
+            ),
             (
                 'https://hooks.slack.com/services/Txxxxxxxx/Bxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxx'
             ),