diff --git a/RPM/SPECS/kaltura-playkit-bundler.spec b/RPM/SPECS/kaltura-playkit-bundler.spec
index d010828d9..c8706592e 100644
--- a/RPM/SPECS/kaltura-playkit-bundler.spec
+++ b/RPM/SPECS/kaltura-playkit-bundler.spec
@@ -70,7 +70,7 @@ fi
 
 
 %post
-cd %{prefix} && npm install yarn -g && yarn install -g forever gulp@3.9.1
+cd %{prefix} && npm install yarn -g && yarn install && yarn install -g forever gulp@3.9.1
 /sbin/chkconfig --add %{name}
 if [ -r %{kaltura_prefix}/app/configurations/local.ini ];then
 	SALT=`grep remote_addr_header_salt %{kaltura_prefix}/app/configurations/local.ini|sed 's@^remote_addr_header_salt\s*=\s*\(.*\)$@\1@g'| sed 's@"@@g'`
diff --git a/deb/kaltura-playkit-bundler/debian/postinst b/deb/kaltura-playkit-bundler/debian/postinst
index 7ab7673cc..d9bee6ede 100755
--- a/deb/kaltura-playkit-bundler/debian/postinst
+++ b/deb/kaltura-playkit-bundler/debian/postinst
@@ -8,7 +8,7 @@ if [ "$1" = "configure" ]; then
 fi
 mkdir -p $KALTURA_PREFIX/.forever
 chown -R $KALTURA_USER:$KALTURA_GROUP $PLAYKIT_PREFIX/log $PLAYKIT_PREFIX/var/run $KALTURA_PREFIX/.forever
-cd $PLAYKIT_PREFIX && npm install yarn -g && yarn install -g forever gulp@3.9.1
+cd $PLAYKIT_PREFIX && npm install yarn -g && yarn install && yarn global add forever gulp@3.9.1
 
 if [ -r $KALTURA_PREFIX/app/configurations/local.ini ];then
 	SALT=`grep remote_addr_header_salt $KALTURA_PREFIX/app/configurations/local.ini|sed 's@^remote_addr_header_salt\s*=\s*\(.*\)$@\1@g'| sed 's@"@@g'`