diff --git a/stack.yaml b/stack.yaml
index ef3310a..f0e7972 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-14.3
+resolver: lts-14.7
 # allow-newer: true
 packages:
 - '.'
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 29f8f6b..8acda84 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -41,7 +41,7 @@ packages:
     hackage: yesod-newsfeed-1.7.0.0
 snapshots:
 - completed:
-    size: 523878
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/14/3.yaml
-    sha256: 470c46c27746a48c7c50f829efc0cf00112787a7804ee4ac7a27754658f6d92c
-  original: lts-14.3
+    size: 523700
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/14/7.yaml
+    sha256: 8e3f3c894be74d71fa4bf085e0a8baae7e4d7622d07ea31a52736b80f8b9bb1a
+  original: lts-14.7