diff --git a/requirements.txt b/requirements.txt
index ce99150..67df2df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ iso8601>=0.1.9
 oslo.config>=1.11.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
 oslo.utils>=1.6.0 # Apache-2.0
-posix_ipc
+posix-ipc
 six>=1.9.0
 fasteners>=0.7 # Apache-2.0
 retrying!=1.3.0,>=1.2.3 # Apache-2.0