diff --git a/serde_derive/Cargo.toml b/serde_derive/Cargo.toml
index e8f9cdef..03e85f00 100644
--- a/serde_derive/Cargo.toml
+++ b/serde_derive/Cargo.toml
@@ -25,7 +25,7 @@ proc-macro = true
 
 [dependencies]
 proc-macro2 = "0.4"
-quote = "0.6"
+quote = "0.6.3"
 syn = { version = "0.14", features = ["visit"] }
 
 [dev-dependencies]