diff --git a/Setup.hs b/Setup.hs
deleted file mode 100644
index 9a994af..0000000
--- a/Setup.hs
+++ /dev/null
@@ -1,2 +0,0 @@
-import Distribution.Simple
-main = defaultMain
diff --git a/stack.yaml b/stack.yaml
index ec4be31..d7dd8f5 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -17,7 +17,7 @@
 #
 # resolver: ./custom-snapshot.yaml
 # resolver: https://example.com/snapshots/2018-01-01.yaml
-resolver: lts-20.8
+resolver: lts-20.16
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 5914216..f33169e 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -17,7 +17,7 @@ packages:
     git: https://github.com/reach-sh/haskell-hexstring.git
 snapshots:
 - completed:
-    sha256: bfafe5735ccb74527d754b1f9999ded72d7c3a6c3a88529449661431ccfbd6cc
-    size: 649327
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/8.yaml
-  original: lts-20.8
+    sha256: dad15e2ec0c09280a5c2e07190fb18710fc54472f029f34f861f686540824d81
+    size: 649592
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/20/16.yaml
+  original: lts-20.16