diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index a3f2cd3a0cdb8947e24496d9cdf3b49fcb6eb425..a3ecdabbe1ce32df4909663bd01fffe2ea0792b5 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -323,7 +323,7 @@ pub fn new() -> Features {
     (active, abi_ptx, "1.15.0", None),
 
     // The `i128` type
-    (active, i128_type, "1.15.0", Some(35118)),
+    (active, i128_type, "1.16.0", Some(35118)),
 );
 
 declare_features! (