diff --git a/appveyor.yml b/appveyor.yml
index 2d57a80..befba9c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,7 +4,7 @@
 ## Operating System (VM environment) ##
 
 # Rust needs at least Visual Studio 2013 Appveyor OS for MSVC targets.
-os: Visual Studio 2015
+os: Visual Studio 2019
 
 ## Build Matrix ##