diff --git a/install.sh b/install.sh
old mode 100644
new mode 100755
index 5848d20..e7d68a4
--- a/install.sh
+++ b/install.sh
@@ -1,2 +1,2 @@
-sudo apt install graphviz
-sudo apt-get install openjdk-21-jre
\ No newline at end of file
+sudo apt install -y graphviz
+sudo apt-get install -y openjdk-21-jre
\ No newline at end of file
diff --git a/prepare.sh b/prepare.sh
old mode 100644
new mode 100755