diff --git a/MANIFEST.in b/MANIFEST.in
index 45381e10..00f09c70 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,4 +1,5 @@
 recursive-include ipympl/static *.*
-include ipympl/*.tgz
+include js/*.tgz
+include js/package.json
 include LICENSE
 include jupyter-matplotlib.json
diff --git a/environment.yml b/environment.yml
index 927b5555..4e29b6b5 100644
--- a/environment.yml
+++ b/environment.yml
@@ -4,5 +4,5 @@ channels:
 dependencies:
   - numpy
   - matplotlib-base>=2.2.2
-  - ipympl=0.5.5
+  - ipympl=0.5.6
   - widgetsnbextension
diff --git a/ipympl/_version.py b/ipympl/_version.py
index 7ecddb22..fd1ae936 100644
--- a/ipympl/_version.py
+++ b/ipympl/_version.py
@@ -1,2 +1,2 @@
-version_info = (0, 5, 5)
+version_info = (0, 5, 6)
 __version__ = '.'.join(map(str, version_info))