diff --git a/haskell/extism.cabal b/haskell/extism.cabal
index fee8538..7c0e52b 100644
--- a/haskell/extism.cabal
+++ b/haskell/extism.cabal
@@ -19,7 +19,7 @@ library
     extra-libraries:    extism
     extra-lib-dirs:     /usr/local/lib
     build-depends:
-        base              >= 4.16.1 && < 4.18.0,
+        base              >= 4.16.1 && < 4.19.0,
         bytestring        >= 0.11.3 && < 0.12,
         json              >= 0.10 && < 0.11,
         extism-manifest   >= 0.0.0 && < 0.2.0
diff --git a/haskell/manifest/extism-manifest.cabal b/haskell/manifest/extism-manifest.cabal
index c9f7fb6..38aa962 100644
--- a/haskell/manifest/extism-manifest.cabal
+++ b/haskell/manifest/extism-manifest.cabal
@@ -15,7 +15,7 @@ library
     hs-source-dirs:     .
     default-language:   Haskell2010
     build-depends:
-        base              >= 4.16.1 && < 4.18.0,
+        base              >= 4.16.1 && < 4.19.0,
         bytestring        >= 0.11.3 && < 0.12,
         json              >= 0.10 && < 0.11,
         base64-bytestring >= 1.2.1 && < 1.3,