diff --git a/requirements.txt b/requirements.txt
index 5fb65221b..a9f67c1cb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@
 bokeh==1.1.0
 # web_widget_mpld3_chart
 matplotlib>=2.0.0
-mpld3>=0.3
+mpld3==0.3