diff --git a/README.md b/README.md
index 83e5df2..c4fc1a8 100644
--- a/README.md
+++ b/README.md
@@ -149,7 +149,7 @@ A standard place to put such executables is `/usr/local/bin/`.
 
 ### Compilation
 
-You'll need the go toolchain for reaction and a c compiler for ip46tables.
+You'll need the go (>= 1.20) toolchain for reaction and a c compiler for ip46tables.
 ```shell
 $ make
 ```