diff --git a/requirements.txt b/requirements.txt
index 42030066..7b0d2adb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,8 @@
-oslo.config<2.5.0
-oslo.i18n<=2.6.0
-oslo.log<1.12.0
-oslo.middleware<2.9.0
-oslo.serialization<1.10.0
-oslo.service<1.0
-oslo.utils<2.6.0
+oslo.config
+oslo.log
+oslo.service
 
-six==1.9.0
+six>=1.9.0
 babel
 eventlet
 influxdb==2.8.0