diff --git a/stack98.yaml b/stack98.yaml
index b6832fd1e..4f6722add 100644
--- a/stack98.yaml
+++ b/stack98.yaml
@@ -8,7 +8,8 @@ packages:
 - hledger-ui
 - hledger-web
 
-#extra-deps:
+extra-deps:
+- encoding-0.10
 
 nix:
   pure: false