diff --git a/requirements.txt b/requirements.txt
index e9e81c6a4c..1f367c881d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ oslo.rootwrap>=2.0.0 # Apache-2.0
 oslo.serialization>=1.10.0 # Apache-2.0
 oslo.service>=1.0.0 # Apache-2.0
 oslo.utils>=3.5.0 # Apache-2.0
-oslo.concurrency>=3.5.0 # Apache-2.0
+oslo.concurrency>=3.7.1 # Apache-2.0
 paramiko>=1.16.0 # LGPL
 Paste # MIT
 PasteDeploy>=1.5.0 # MIT
diff --git a/test-requirements.txt b/test-requirements.txt
index 58c3c7ee6c..e0a584d6be 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -11,7 +11,7 @@ ddt>=1.0.1 # MIT
 fixtures<2.0,>=1.3.1 # Apache-2.0/BSD
 mock>=1.2 # BSD
 iso8601>=0.1.9 # MIT
-PyMySQL>=0.6.2 # MIT License
+PyMySQL!=0.7.7,>=0.6.2 # MIT License
 oslotest>=1.10.0 # Apache-2.0
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 psycopg2>=2.5 # LGPL/ZPL