diff --git a/stack.yaml b/stack.yaml
index c9af3bf..da01093 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-22.31
+resolver: lts-23.3
 
 packages:
   - .
@@ -13,4 +13,5 @@
 
 allow-newer: true
 
-extra-deps: []
+extra-deps:
+  - dhall-1.42.1@sha256:642785a2db236c7e94a5765e70690f88f87ef9c01a891669674b9cbc70a14948,17321
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 75d0d03..52930a1 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -1,12 +1,19 @@
 # This file was autogenerated by Stack.
 # You should not edit this file by hand.
 # For more information, please see the documentation at:
-#   https://docs.haskellstack.org/en/stable/lock_files
+#   https://docs.haskellstack.org/en/stable/topics/lock_files
 
-packages: []
+packages:
+- completed:
+    hackage: dhall-1.42.1@sha256:642785a2db236c7e94a5765e70690f88f87ef9c01a891669674b9cbc70a14948,17321
+    pantry-tree:
+      sha256: d43fd9fdef0becacb490fcf8ef45f326c456f3217e8504ee6fa804bfe33f5f15
+      size: 352601
+  original:
+    hackage: dhall-1.42.1@sha256:642785a2db236c7e94a5765e70690f88f87ef9c01a891669674b9cbc70a14948,17321
 snapshots:
 - completed:
-    sha256: acaab6ca693211938d1542abcb1c83a2f298b9f6b571854a9d38febe39b6408e
-    size: 719577
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/31.yaml
-  original: lts-22.31
+    sha256: dd89d2322cb5af74c6ab9d96c0c5f6c8e6653e0c991d619b4bb141a49cb98668
+    size: 679282
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/23/3.yaml
+  original: lts-23.3