diff --git a/requirements.txt b/requirements.txt
index c50d7ee..b3874e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,18 @@
 appdirs==1.4.3
+decorator==4.0.11
+ipython==5.3.0
+ipython-genutils==0.2.0
 Jinja2==2.9.6
 MarkupSafe==1.0
 packaging==16.8
+path.py==10.1
+pexpect==4.2.1
+pickleshare==0.7.4
+prompt-toolkit==1.0.14
+ptyprocess==0.5.1
+Pygments==2.2.0
 pyparsing==2.2.0
+simplegeneric==0.8.1
 six==1.10.0
+traitlets==4.3.2
+wcwidth==0.1.7