diff --git a/lackey.cabal b/lackey.cabal
--- a/lackey.cabal
+++ b/lackey.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.2
 
 name: lackey
-version: 2.0.0.4
+version: 2.0.0.5
 
 synopsis: Generate Ruby clients from Servant APIs.
 description: Lackey generates Ruby clients from Servant APIs.
@@ -26,8 +26,8 @@
 
 common library
   build-depends:
-    , base >= 4.15.0 && < 4.18
-    , servant-foreign >= 0.15 && < 0.16
+    , base >= 4.16.0 && < 4.19
+    , servant-foreign >= 0.15.4 && < 0.16
     , text >= 1.2.5 && < 1.3 || >= 2.0 && < 2.1
   default-language: Haskell2010
   ghc-options:
@@ -35,14 +35,11 @@
     -Wno-all-missed-specialisations
     -Wno-implicit-prelude
     -Wno-missing-exported-signatures
+    -Wno-missing-kind-signatures
     -Wno-missing-safe-haskell-mode
     -Wno-prepositive-qualified-module
     -Wno-unsafe
 
-  if impl(ghc >= 9.2)
-    ghc-options:
-      -Wno-missing-kind-signatures
-
   if flag(pedantic)
     ghc-options: -Werror
 
@@ -66,7 +63,7 @@
 
   build-depends:
     , hspec >= 2.7.6 && < 2.11
-    , servant >= 0.16.2 && < 0.20
+    , servant >= 0.19.1 && < 0.20
   hs-source-dirs: source/test-suite
   main-is: Main.hs
   type: exitcode-stdio-1.0