diff --git a/test-requirements.txt b/test-requirements.txt
index 389840b001..a39114e27b 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,7 @@ doc8 # Apache-2.0
 fixtures<2.0,>=1.3.1 # Apache-2.0/BSD
 mock>=1.2 # BSD
 Babel!=2.3.0,!=2.3.1,!=2.3.2,!=2.3.3,>=1.3 # BSD
-PyMySQL>=0.6.2 # MIT License
+PyMySQL!=0.7.7,>=0.6.2 # MIT License
 iso8601>=0.1.9 # MIT
 oslotest>=1.10.0 # Apache-2.0
 psycopg2>=2.5 # LGPL/ZPL