1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 74824623fc..9fdfc58be9 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ Install:
 
 * git
 * C compiler, header files, etc.
-* ruby 2.3.3 or later
+* ruby 2.4 or later
 * rubygems
 * bundler gem