diff --git a/build/DEBIAN/postinst b/build/DEBIAN/postinst
index 7f05c0f..9e8c231 100755
--- a/build/DEBIAN/postinst
+++ b/build/DEBIAN/postinst
@@ -1,3 +1,3 @@
 # !/bin/sh 
-pip3 install --upgrade pillow 
-pip3 install --upgrade ttkthemes
+python3 -m pip install --upgrade pillow 
+python3 -m pip install --upgrade ttkthemes
\ No newline at end of file
diff --git a/spark-uengine-runner.deb b/spark-uengine-runner.deb
index 8cf5990..239068d 100644
Binary files a/spark-uengine-runner.deb and b/spark-uengine-runner.deb differ