diff --git a/fountainhead.cabal b/fountainhead.cabal
index 8acb0c1..dc6d047 100644
--- a/fountainhead.cabal
+++ b/fountainhead.cabal
@@ -1,4 +1,4 @@
-cabal-version: 2.4
+cabal-version: 3.4
 name: fountainhead
 version: 0.1.0.0
 
@@ -22,9 +22,9 @@ extra-source-files:
 common dependencies
   build-depends:
     base >= 4.16 && < 5,
-    bytestring ^>= 0.11.0,
-    text ^>= 2.0,
-    zlib ^>= 0.6.3
+    bytestring ^>= 0.12.0,
+    text ^>= 2.1,
+    zlib ^>= 0.7.0
   default-language: GHC2021
 
 library
@@ -40,9 +40,9 @@ library
   hs-source-dirs: lib
   build-depends:
     containers ^>= 0.6.5,
-    megaparsec ^>= 9.3,
+    megaparsec ^>= 9.7,
     time ^>= 1.12,
-    transformers ^>= 0.5,
+    transformers ^>= 0.6,
     vector ^>= 0.13.0
   ghc-options: -Wall
 
@@ -77,3 +77,5 @@ test-suite fountainhead-test
   build-depends:
     fountainhead,
     hspec >= 2.9 && < 3
+  build-tool-depends:
+    hspec-discover:hspec-discover