diff --git a/requirements_dev.txt b/requirements_dev.txt
index ff23148..e6507a1 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 jupyter==1.0.0
-ipywidgets==6.0.0
+ipywidgets==7.2.1
 numpy==1.13.1
 pandas==0.20.3
 matplotlib==2.0.2