diff --git a/requirements.txt b/requirements.txt
index 31fc3f52..91d55b4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,4 +52,4 @@ cachetools>=1.0.0 # MIT License
 debtcollector>=1.2.0 # Apache-2.0
 
 # For sqlalchemy persistence backend
-sqlalchemy-utils  # BSD License
+sqlalchemy-utils # BSD License
diff --git a/test-requirements.txt b/test-requirements.txt
index f724ea32..10eeba73 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -29,7 +29,7 @@ sqlalchemy-utils # BSD License
 PyMySQL>=0.6.2 # MIT License
 
 # Used for making sure we still work with eventlet.
-eventlet>=0.18.2 # MIT
+eventlet!=0.18.3,>=0.18.2 # MIT
 
 # Docs build jobs need these packages.
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD