diff --git a/stack.yaml b/stack.yaml
index 613d3543a..46618df8e 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -56,5 +56,7 @@ extra-deps:
 
   - persistent-qq-2.9.1
 
+  - process-1.6.5.1
+
 resolver: lts-13.21
 allow-newer: true