diff --git a/README.md b/README.md
index f308fb1011520f09fb111c4f3078e1cf43ed04d6..4b62bfde03427f1e8832b17bbe7b4a61aa1652c2 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ For prerequisites and detailed build instructions please read the
 [Installation Instructions](https://github.com/ethereum/go-ethereum/wiki/Building-Ethereum)
 on the wiki.
 
-Building geth requires both a Go (version 1.7 or later) and a C compiler.
+Building geth requires both a Go (version 1.9 or later) and a C compiler.
 You can install them using your favourite package manager.
 Once the dependencies are installed, run