diff --git a/.travis.yml b/.travis.yml
index 82e5b66..d003a84 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ env:
  - GHCVER=8.2.2 CABALVER=1.24  MONGO=3.4 STACKAGE=lts-11.6
  - GHCVER=8.0.2 CABALVER=1.24  MONGO=3.6 STACKAGE=lts-9.21
  - GHCVER=8.2.2 CABALVER=1.24  MONGO=3.6 STACKAGE=lts-11.6
- - GHCVER=8.2.2 CABALVER=1.24  MONGO=3.6 STACKAGE=lts
+ - GHCVER=8.4.2 CABALVER=2.2.0.1  MONGO=3.6 STACKAGE=nightly
 
 before_install: