diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..b59ebef
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,4 @@
+springbootVersion = 2.1.3.RELEASE
+kotlinVersion = 1.2.41
+payapiVersion = 1.0
+jdkVersion = 1.8
\ No newline at end of file