diff --git a/tox.ini b/tox.ini
index 63b2feae5..a60d5345c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -168,7 +168,7 @@ deps =
     pep8-naming==0.3.3
     pydocstyle==1.0.0
     pyflakes==1.2.3
-    pyparsing==2.1.3
+    pyparsing==2.1.4
     six==1.10.0
     sortedcontainers==1.4.4
     venusian==1.0