diff --git a/README.md b/README.md
index 5a0551a..6273b44 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
 
 ```toml
 [dependencies]
-syn = "0.12"
+syn = "0.11"
 quote = "0.3"
 
 [lib]