diff --git a/requirements.txt b/requirements.txt
index 5bd63e3..6e7cb3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 numpy==1.14.0
-pandas==0.22.0
+pandas==0.23.3
 workalendar==2.3.1