diff --git a/stack-ghc9.0.2.yaml b/stack-ghc9.0.2.yaml
index bdfeca742..c8f88a134 100644
--- a/stack-ghc9.0.2.yaml
+++ b/stack-ghc9.0.2.yaml
@@ -1,4 +1,4 @@
-resolver: nightly-2022-02-19 # ghc 9.0.2
+resolver: lts-19.6
 
 extra-deps:
 # - network-2.6.3.6