diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 0000000..6917480
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,10 @@
+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x:                |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |