diff --git a/monkey_island/deb-package/DEBIAN/postinst b/monkey_island/deb-package/DEBIAN/postinst
index 42b8f1eb0..3fa922a01 100644
--- a/monkey_island/deb-package/DEBIAN/postinst
+++ b/monkey_island/deb-package/DEBIAN/postinst
@@ -2,16 +2,17 @@
 
 MONKEY_FOLDER=/var/monkey_island
 INSTALLATION_FOLDER=/var/monkey_island/installation
+PYTHON_FOLDER=/var/monkey_island/bin/python
 
 cp -f ${MONKEY_FOLDER}/monkey.sh /usr/bin/monkey
 chmod 755 /usr/bin/monkey
 
-# Fix dependency bug
-pip uninstall -y bson
+# Prepare python virtualenv
+pip2 install virtualenv --no-index --find-links file://$INSTALLATION_FOLDER
+virtualenv -p python2.7 ${PYTHON_FOLDER}
 
 # install pip requirements
-pip install -r $MONKEY_FOLDER/pip_requirements.txt --no-index --find-links file://$INSTALLATION_FOLDER
-
+${PYTHON_FOLDER}/bin/python -m pip install -r $MONKEY_FOLDER/pip_requirements.txt --no-index --find-links file://$INSTALLATION_FOLDER
 
 # remove installation folder and unnecessary files
 rm -rf ${INSTALLATION_FOLDER}
diff --git a/monkey_island/deb-package/DEBIAN/prerm b/monkey_island/deb-package/DEBIAN/prerm
index e7924c738..98557e487 100644
--- a/monkey_island/deb-package/DEBIAN/prerm
+++ b/monkey_island/deb-package/DEBIAN/prerm
@@ -8,4 +8,6 @@ rm -f /etc/init/monkey-mongo.conf
 [ -f "/lib/systemd/system/monkey-island.service" ] && rm -f /lib/systemd/system/monkey-island.service
 [ -f "/lib/systemd/system/monkey-mongo.service" ] && rm -f /lib/systemd/system/monkey-mongo.service
 
+rm -r -f /var/monkey_island
+
 exit 0
\ No newline at end of file
diff --git a/monkey_island/deb-package/monkey_island_pip_requirements.txt b/monkey_island/deb-package/monkey_island_pip_requirements.txt
index 275c8b96a..26f0f9ee2 100644
--- a/monkey_island/deb-package/monkey_island_pip_requirements.txt
+++ b/monkey_island/deb-package/monkey_island_pip_requirements.txt
@@ -9,4 +9,5 @@ flask
 Flask-Pymongo
 Flask-Restful
 jsonschema
-netifaces
\ No newline at end of file
+netifaces
+virtualenv
\ No newline at end of file
diff --git a/monkey_island/linux/ubuntu/systemd/start_server.sh b/monkey_island/linux/ubuntu/systemd/start_server.sh
index 817da7a55..ceeab57f4 100644
--- a/monkey_island/linux/ubuntu/systemd/start_server.sh
+++ b/monkey_island/linux/ubuntu/systemd/start_server.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
 cd /var/monkey_island/cc
-python main.py
\ No newline at end of file
+/var/monkey_island/bin/python/bin/python main.py
\ No newline at end of file