diff --git a/README.md b/README.md
index 3b1deaa..1490fcd 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,7 @@ the test requires Nginx to listen on port 80.
 
 ## Compatibility
 * Nginx
+  * 1.27.x (last tested: 1.27.3)
   * 1.22.x (last tested: 1.22.0)
   * 1.19.x (last tested: 1.19.6)
   * 1.18.x (last tested: 1.18.0)