diff --git a/.gitignore b/.gitignore
index bccf002..febbcdd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ cabal.sandbox.config
 .*.swp
 *.log
 *.dump-hi
+dist-newstyle/
diff --git a/mat-chalmers.cabal b/mat-chalmers.cabal
index 445673a..95cea27 100644
--- a/mat-chalmers.cabal
+++ b/mat-chalmers.cabal
@@ -30,13 +30,14 @@ library
 
   build-depends: aeson
                , attoparsec
-               , base >=4.7
+               , base >=4.9
+               , bytestring >=0.10.8.2 && <0.12
                , css-text
                , exceptions == 0.10.4
                , heredoc == 0.2.0.0
                , http-client
-               , http-client-tls == 0.3.5.3
-               , logging-effect == 1.3.12
+               , http-client-tls >= 0.3.6.3 && <= 0.4
+               , logging-effect >= 1.4.0 && <= 2.0
                , microlens-platform
                , lucid >= 2
                , mtl == 2.2.2
@@ -44,8 +45,7 @@ library
                , prettyprinter == 1.7.1
                , safe == 0.3.19
                , tagsoup == 0.14.8
-               , text == 1.2.4.1
-               , bytestring == 0.10.12.0
+               , text >= 2.0 && <= 3.0
                , file-embed
                , thyme
                , word8 == 0.1.3
@@ -55,10 +55,10 @@ executable mat-chalmers
   ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall -Werror -Wunused-binds -Wunused-imports -Wcompat
   hs-source-dirs: app
   build-depends: mat-chalmers
-               , base >= 4.7
+               , base >= 4.9
                , bytestring
                , file-embed
-               , http-client-tls == 0.3.5.3
+               , http-client-tls
                , microlens-platform
                , logging-effect
                , mtl
@@ -66,7 +66,7 @@ executable mat-chalmers
                , time == 1.9.3
                , wai-extra
                , wai-middleware-static-embedded == 0.1.0.0
-               , async >= 2.1.1
+               , async >= 2.2.4 && <= 3.0
   default-language: Haskell2010
 
 Test-Suite test-mat
@@ -74,7 +74,7 @@ Test-Suite test-mat
   main-is: Main.hs
   hs-source-dirs: test
   default-language: Haskell2010
-  build-depends: base >= 4.7
+  build-depends: base >= 4.9
                , bytestring
                , mat-chalmers
                , hspec == 2.7.10
diff --git a/src/View.hs b/src/View.hs
index 3edbd4b..5948c31 100644
--- a/src/View.hs
+++ b/src/View.hs
@@ -9,13 +9,13 @@ where
 import           Data.FileEmbed
 import qualified Data.Text.Lazy                as T
 import qualified Data.Text.Lazy.Builder        as T
-import           Data.Thyme
+import           Data.Thyme                               ( defaultTimeLocale
+                                                          , formatTime )
 import           Lens.Micro.Platform                      ( (&)
                                                           , (%~)
                                                           , both
                                                           )
 import           Lucid
-import           System.Locale                            ( defaultTimeLocale )
 import qualified Text.CSS.Parse                as CSS
 import qualified Text.CSS.Render               as CSS
 
diff --git a/stack.yaml b/stack.yaml
deleted file mode 100644
index bfa1c8b..0000000
--- a/stack.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-resolver: lts-18.28
-packages:
-  - "."
-extra-deps:
-  - wai-middleware-static-embedded-0.1.0.0@sha256:036b7823a5e69452d1fe1e270ef3d4988063caa5bb00b6dfc356e1c21b7433e3
-  - logging-effect-1.3.12@sha256:72d168dd09887649ba9501627219b6027cbec2d5541931555b7885b133785ce3,1679
-
-ghc-options: { "$locals": -ddump-to-file -ddump-hi }