diff --git a/IPython/utils/jsonutil.py b/IPython/utils/jsonutil.py
new file mode 100644
index 0000000..c3ee938
--- /dev/null
+++ b/IPython/utils/jsonutil.py
@@ -0,0 +1,5 @@
+from warnings import warn
+
+warn("IPython.utils.jsonutil has moved to jupyter_client.jsonutil")
+
+from jupyter_client.jsonutil import *