diff --git a/README.md b/README.md
index cdf4b4d2..020b7d8e 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ preamble to an already existing one:
 ```yaml
 repos:
   - repo: https://github.com/shssoichiro/oxipng
-    rev: v9.0.0
+    rev: v9.1.4
     hooks:
       - id: oxipng
         args: ["-o", "4", "--strip", "safe", "--alpha"]