diff --git a/requirements.txt b/requirements.txt
index 6bfcef79..f85b92d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ six>=1.9.0
 enum34
 
 # For reader/writer + interprocess locks.
-fasteners>=0.5  # Apache-2.0
+fasteners>=0.7  # Apache-2.0
 
 # Very nice graph library
 networkx>=1.8