diff --git a/requirements.txt b/requirements.txt
index 3728fed2..0b52440a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@
 #
 # PBR should always appear first
 pbr!=2.1.0,>=2.0.0 # Apache-2.0
-python-magnumclient>=2.15.0 # Apache-2.0
+python-magnumclient>=4.2.0 # Apache-2.0
 python-heatclient>=1.18.0
 
 horizon>=17.1.0 # Apache-2.0