diff --git a/stack-7.10.yaml b/stack-7.10.yaml
index 318facf..3db00fd 100644
--- a/stack-7.10.yaml
+++ b/stack-7.10.yaml
@@ -1,6 +1,13 @@
 flags: {}
 packages:
 - '.'
+- location:
+    git: https://github.com/parsonsmatt/persistent
+    commit: a4f21ad5db9b65a5febf79a1be091597210a73ca
+  subdirs:
+    - persistent
+  extra-dep: true
+
 resolver: lts-6.12
 extra-deps:
-  - persistent-2.7.1
+    # - persistent-2.7.1