diff --git a/requirements.in b/requirements.in
index 9bac01f..c38e81f 100644
--- a/requirements.in
+++ b/requirements.in
@@ -18,7 +18,7 @@
 pyangbind
 python-openstackclient
 pyyaml<6
-regex
+regex==2021.11.10 # from IM
 requests
 robotframework
 robotframework-jsonlibrary