diff --git a/requirements.txt b/requirements.txt
index 496fca1..b45e284 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ swagger-ui-bundle >= 0.0.2
 python_dateutil >= 2.6.0
 setuptools >= 21.0.0
 Flask == 2.1.1
-openstacksdk
+openstacksdk == 0.62.0
 os_client_config
 gunicorn
-pymemcache
+pymemcache == 3.5.2