diff --git a/requirements.txt b/requirements.txt
index 39e06ee..eecadce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,6 @@ pandas==0.19.2
 parsimonious==0.7.0
 sympy==1.0
 traces==0.3.1
-pytest==3.2.2
 hypothesis==3.32.1
 
 pytest==3.2.3