diff --git a/requirements.txt b/requirements.txt
index 98e2e75c19d..54b66181a7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ netifaces>=0.10.4 # MIT
 neutron-lib>=0.2.0 # Apache-2.0
 python-neutronclient>=4.2.0 # Apache-2.0
 retrying!=1.3.0,>=1.2.3 # Apache-2.0
-ryu>=4.4 # Apache-2.0
+ryu!=4.1,!=4.2,!=4.2.1,!=4.4,>=3.30 # Apache-2.0
 SQLAlchemy<1.1.0,>=1.0.10 # MIT
 WebOb>=1.2.3 # MIT
 keystoneauth1>=2.7.0 # Apache-2.0
@@ -29,7 +29,7 @@ six>=1.9.0 # MIT
 stevedore>=1.10.0 # Apache-2.0
 oslo.cache>=1.5.0 # Apache-2.0
 oslo.concurrency>=3.8.0 # Apache-2.0
-oslo.config>=3.10.0 # Apache-2.0
+oslo.config>=3.12.0 # Apache-2.0
 oslo.context>=2.4.0 # Apache-2.0
 oslo.db>=4.1.0 # Apache-2.0
 oslo.i18n>=2.1.0 # Apache-2.0
@@ -41,7 +41,7 @@ oslo.reports>=0.6.0 # Apache-2.0
 oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.service>=1.10.0 # Apache-2.0
-oslo.utils>=3.14.0 # Apache-2.0
+oslo.utils>=3.15.0 # Apache-2.0
 oslo.versionedobjects>=1.9.1 # Apache-2.0
 osprofiler>=1.3.0 # Apache-2.0
 ovs>=2.5.0;python_version=='2.7' # Apache-2.0