1 files changed, 1 insertions, 1 deletions
diff --git a/stack.yaml b/stack.yaml
index 7baf51a..40bb22c 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,6 +1,6 @@
 packages:
 - '.'
-resolver: lts-9.0
+resolver: lts-9.21
 extra-deps:
 - argon2-1.3.0.0
 - secret-sharing-1.0.0.3