diff --git a/abra.sh b/abra.sh
index 724bb11..abd32a7 100644
--- a/abra.sh
+++ b/abra.sh
@@ -1 +1 @@
-export INSTALL_PACKAGES_CONF_VERSION=v6
+export INSTALL_PACKAGES_CONF_VERSION=v7
diff --git a/compose.voila.yml b/compose.voila.yml
index 910a08b..55d1cff 100644
--- a/compose.voila.yml
+++ b/compose.voila.yml
@@ -14,7 +14,7 @@ services:
     command: >
       bash -c
         "
-        pip install ipywidgets jupyterlab-git voila &&
+        pip install ipywidgets jupyterlab-git voila ipysheet &&
         voila --enable_nbextensions=True --autoreload=True --Voila.ip=0.0.0.0 --TagRemovePreprocessor.remove_cell_tags='{\"hide\"}' --no-browser --MappingKernelManager.cull_interval=60 --MappingKernelManager.cull_idle_timeout=120
         "
 
diff --git a/install-packages.sh b/install-packages.sh
index 398da76..a957ff4 100644
--- a/install-packages.sh
+++ b/install-packages.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-pip install ipywidgets jupyterlab-git
+pip install ipywidgets jupyterlab-git ipysheet