diff --git a/stack.yaml b/stack.yaml
index 9622f11077b..50f555e83c3 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -14,6 +14,8 @@ packages:
 - hledger-web
 
 extra-deps:
+- base-compat-0.14.0
+- base-compat-batteries-0.14.0
 # for hledger-lib
 - Cabal-3.12.0.0
 - Cabal-syntax-3.12.0.0
diff --git a/stack8.10.yaml b/stack8.10.yaml
index d08bdfcb7ff..970d7088b5c 100644
--- a/stack8.10.yaml
+++ b/stack8.10.yaml
@@ -10,6 +10,14 @@ packages:
 
 extra-deps:
 - safe-0.3.21
+
+- base-compat-0.14.0
+# needed for the above:
+- base-compat-batteries-0.14.0
+- OneTuple-0.4.2
+- foldable1-classes-compat-0.1
+- hashable-1.4.7.0
+
 # for hledger-lib:
 - doctest-0.20.0
 - ansi-terminal-0.11.4