1 files changed, 3 insertions, 3 deletions

diff --git a/stack.yaml b/stack.yaml
index c8d8fef..1dea8c4 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,8 +1,8 @@
 packages:
 - '.'
-resolver: lts-13.29
+resolver: lts-19.0
 extra-deps:
-- graphviz-2999.20.0.3
-- posix-pty-0.2.1.1
+- graphviz-2999.20.1.0
+- posix-pty-0.2.2
 - sandi-0.5
 explicit-setup-deps: