diff --git a/appveyor.yml b/appveyor.yml
index 4bd555ba8..14328d385 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,7 +11,7 @@ platform:
 environment:
   matrix:
     - TOOLCHAIN_VERSION: 14.0
-      RUST: 1.13.0
+      RUST: 1.15.1
     - TOOLCHAIN_VERSION: 14.0
       RUST: beta
     - TOOLCHAIN_VERSION: 14.0