diff --git a/README.md b/README.md
index f0b8d42..2d3c0c2 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-<img src="https://img.shields.io/badge/go%20version-min%201.20-green" alt="Go version"/>
+<img src="https://img.shields.io/badge/go%20version-min%201.21-green" alt="Go version"/>
 
 # go-powerdns-protobuf