diff --git a/python/requirements.txt b/python/requirements.txt
index 334c7cc..1bfda25 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,5 +1,5 @@
 Cython>=0.22
 pystan>=2.14
 numpy>=1.10.0
-pandas>=0.18.1
+pandas>=0.20.1
 matplotlib>=2.0.0