diff --git a/appveyor.yml b/appveyor.yml
index 160fd34e3..102fc5cc6 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -21,3 +21,4 @@ cache:
   - C:\sbt\
   - C:\Users\appveyor\.m2
   - C:\Users\appveyor\.ivy2
+  - C:\Users\appveyor\.sbt