diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 1d6d0b6..b9b0415 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -23,8 +23,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ghc: ["9.6.7", "9.8.4", "9.10.2", "9.12.2"]
-        cabal: ["3.14"]
+        ghc: ["9.6.7", "9.8.4", "9.10.2", "9.12.2", "9.14.1"]
+        cabal: ["3.16"]
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
diff --git a/cabal.project b/cabal.project
index aac0f4d..4114548 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,4 +1,4 @@
-index-state: hackage.haskell.org 2025-05-21T15:48:46Z
+index-state: hackage.haskell.org 2026-03-03T01:46:20Z
 
 packages:
   rawlock
@@ -9,3 +9,25 @@ package strict-checked-vars
   flags: +checktvarinvariants +checkmvarinvariants
 
 tests: True
+
+-- cabal-allow-newer
+if impl (ghc >= 9.14)
+  allow-newer:
+    , aeson:containers
+    , aeson:template-haskell
+    , binary:containers
+    , indexed-traversable:base
+    , indexed-traversable:containers
+    , indexed-traversable-instances:base
+    , semialign:base
+    , semialign:containers
+    , semialign:indexed-traversable
+    , these:base
+    , tree-diff:base
+    , tree-diff:aeson
+    , tree-diff:base
+    , tree-diff:containers
+    , tree-diff:semialign
+    , tree-diff:these
+    , tree-diff:uuid-types
+    , uuid-types:template-haskell
diff --git a/rawlock/rawlock.cabal b/rawlock/rawlock.cabal
index a0db0a1..fe0ace1 100644
--- a/rawlock/rawlock.cabal
+++ b/rawlock/rawlock.cabal
@@ -59,9 +59,9 @@ library
   exposed-modules: Control.RAWLock
   default-extensions: ImportQualifiedPost
   build-depends:
-    base >=4.18 && <4.22,
-    io-classes:{io-classes, strict-mvar, strict-stm} ^>=1.8,
-    nothunks ^>=0.2,
+    base >=4.18 && <4.23,
+    io-classes:{io-classes, strict-mvar, strict-stm} ^>=1.8 || ^>=1.9,
+    nothunks ^>=0.2 || ^>=0.3,
 
 test-suite rawlock-test
   import: warnings
diff --git a/resource-registry/resource-registry.cabal b/resource-registry/resource-registry.cabal
index 39ce585..b760157 100644
--- a/resource-registry/resource-registry.cabal
+++ b/resource-registry/resource-registry.cabal
@@ -54,12 +54,12 @@ library
   import: warnings
   exposed-modules: Control.ResourceRegistry
   build-depends:
-    base >=4.14 && <4.22,
+    base >=4.14 && <4.23,
     bimap ^>=0.5,
-    containers >=0.6.7 && <0.8,
-    io-classes:{io-classes, strict-stm} ^>=1.8,
+    containers >=0.6.7 && <0.9,
+    io-classes:{io-classes, strict-stm} ^>=1.8 || ^>=1.9,
     mtl ^>=2.3,
-    nothunks ^>=0.2,
+    nothunks ^>=0.2 || ^>=0.3,
 
   hs-source-dirs: src
   default-language: Haskell2010
diff --git a/strict-checked-vars/strict-checked-vars.cabal b/strict-checked-vars/strict-checked-vars.cabal
index 0cfec54..4becff7 100644
--- a/strict-checked-vars/strict-checked-vars.cabal
+++ b/strict-checked-vars/strict-checked-vars.cabal
@@ -57,7 +57,7 @@ library
   default-extensions: ImportQualifiedPost
   build-depends:
     base >=4.9 && <5,
-    io-classes:{io-classes, strict-mvar, strict-stm} ^>=1.8,
+    io-classes:{io-classes, strict-mvar, strict-stm} ^>=1.8 || ^>=1.9,
 
   ghc-options:
     -Wall
@@ -91,7 +91,7 @@ test-suite test
     QuickCheck,
     base,
     io-classes,
-    io-sim,
+    io-sim <1.10,
     nothunks,
     strict-checked-vars,
     tasty,