diff --git a/UniHs.cabal b/UniHs.cabal
index 149922b..5821f3f 100644
--- a/UniHs.cabal
+++ b/UniHs.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.35.2.
+-- This file has been generated from package.yaml by hpack version 0.36.0.
 --
 -- see: https://github.com/sol/hpack
 
@@ -35,6 +35,7 @@ library
       Data.CourseDirectory.Parsing
       Data.Maybe.Helpers
       Data.Sequence.Helpers
+      Exceptions
       IOHelpers
       Options
       Printing
@@ -64,6 +65,7 @@ library
     , path <0.10
     , path-io <1.9
     , pretty-simple <4.2
+    , safe <0.4
     , text <2.1
     , transformers <0.6.2
   default-language: Haskell2010
@@ -94,6 +96,7 @@ executable UniHs-exe
     , path <0.10
     , path-io <1.9
     , pretty-simple <4.2
+    , safe <0.4
     , text <2.1
     , transformers <0.6.2
   default-language: Haskell2010
@@ -125,6 +128,7 @@ test-suite UniHs-test
     , path <0.10
     , path-io <1.9
     , pretty-simple <4.2
+    , safe <0.4
     , text <2.1
     , transformers <0.6.2
   default-language: Haskell2010
diff --git a/package.yaml b/package.yaml
index 0e2770a..c9d70e7 100644
--- a/package.yaml
+++ b/package.yaml
@@ -23,23 +23,23 @@ dependencies:
 - base >= 4.7 && < 5
 - aeson < 2.2.1
 - aeson-pretty < 0.9
-- transformers < 0.6.2
-- mtl < 2.4
+- ansi-terminal < 1.1
+- bytestring < 0.12
 - containers < 0.7
 - either < 5.1
 - extra < 1.8
-- ansi-terminal < 1.1
-- optparse-applicative < 0.19
 - filepath < 1.5
+- transformers < 0.6.2
+- lens < 5.3
+- megaparsec < 9.5
+- mtl < 2.4
+- optparse-applicative < 0.19
 - path < 0.10
 - path-io < 1.9
-- megaparsec < 9.5
-- text < 2.1
-- bytestring < 0.12
-- lens < 5.3
 - pretty-simple < 4.2
 - QuickCheck < 2.15
-
+- safe < 0.4
+- text < 2.1
 
 ghc-options:
 - -Wall
diff --git a/stack.yaml b/stack.yaml
index a5db5d9..6f39ce6 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -8,8 +8,8 @@
 # A snapshot resolver dictates the compiler version and the set of packages
 # to be used for project dependencies. For example:
 #
-# resolver: lts-21.19
-resolver: nightly-2023-11-06
+#resolver: lts-21.23
+resolver: nightly-2023-12-07
 # resolver: ghc-9.6.3
 #
 # The location of a snapshot can be provided as a file or url. Stack assumes
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 8ed5582..9c48651 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -6,7 +6,7 @@
 packages: []
 snapshots:
 - completed:
-    sha256: 9b6cd515c82ef18d0acb2c1dfc160eefc463a917ee86cce269b579ae47527831
-    size: 698330
-    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2023/11/6.yaml
-  original: nightly-2023-11-06
+    sha256: ea200ce76bd0713b746001f1acaa55541d9ee936c668251b5f5d83e7848b8fff
+    size: 708926
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2023/12/7.yaml
+  original: nightly-2023-12-07