diff --git a/srcpkgs/git-annex/files/stack.yaml b/srcpkgs/git-annex/files/stack.yaml
index a6d4f6aeee6..5d457bebde8 100644
--- a/srcpkgs/git-annex/files/stack.yaml
+++ b/srcpkgs/git-annex/files/stack.yaml
@@ -28,4 +28,5 @@ extra-deps:
  - network-3.1.0.1
 explicit-setup-deps:
   git-annex: true
-resolver: lts-16.27
+resolver: lts-17.5
+allow-newer: true