diff --git a/scripts/install b/scripts/install
index ded3a26..8deae1c 100755
--- a/scripts/install
+++ b/scripts/install
@@ -126,7 +126,7 @@ ynh_script_progression --message="Creating smarty3 folder for personal data..."
 
 mkdir -p "${final_path}/store"
 mkdir -p  "${final_path}/cache/smarty3"
-chmod -R 777 $final_path/store $final_path/cache
+chmod -R 775 $final_path/store $final_path/cache
 
 # Copy the template install/htconfig.sample.php to .htconfig.php
 config="$final_path/.htconfig.php"
diff --git a/scripts/upgrade b/scripts/upgrade
index cdc00c2..ebbcb46 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -117,7 +117,7 @@ if [ `cd $final_path && git rev-parse --is-inside-work-tree` ]; then
 			fi;
 		done
 	popd
-	chmod -R 777 $final_path/store
+	chmod -R 775 $final_path/store
 else
 
     # Create a temporary directory
@@ -139,7 +139,7 @@ else
 	cp -a "$tmpdir/.htconfig.php" "${final_path}"
 	cp -a "$tmpdir/php.log" "${final_path}"
 	ynh_secure_remove --file="$tmpdir"
-	chmod -R 777 $final_path/store
+	chmod -R 775 $final_path/store
 	mkdir $final_path/addon
 	ynh_setup_source --dest_dir="$final_path/addon" --source_id="app_addons"
 fi