diff --git a/test-requirements.txt b/test-requirements.txt
index f1779d3..c55140b 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
 contextdecorator
-PyYAML>=3.11
+PyYAML>=3.10
 testtools>=0.9.34
 vcrpy