diff --git a/cabal.project b/cabal.project
index 9e73ba9..e5b42a0 100644
--- a/cabal.project
+++ b/cabal.project
@@ -12,9 +12,9 @@ repository cardano-haskell-packages
 
 index-state:
   -- Bump this if you need newer packages from Hackage
-  , hackage.haskell.org 2023-11-30T00:00:00Z
+  , hackage.haskell.org 2024-02-22T20:53:27Z
   -- Bump this if you need newer packages from CHaP
-  , cardano-haskell-packages 2023-11-30T00:00:00Z
+  , cardano-haskell-packages 2024-02-23T09:45:19Z
 
 packages:
   fs-api
diff --git a/fs-api/fs-api.cabal b/fs-api/fs-api.cabal
index 2a5ce53..ce2bd4e 100644
--- a/fs-api/fs-api.cabal
+++ b/fs-api/fs-api.cabal
@@ -51,7 +51,7 @@ library
     , digest
     , directory   >=1.3  && <1.4
     , filepath    >=1.4  && <1.5
-    , io-classes  >=0.3  && <1.4
+    , io-classes  >=0.3  && <1.5
     , text        >=1.2  && <2.2
 
   if os(windows)
diff --git a/fs-sim/fs-sim.cabal b/fs-sim/fs-sim.cabal
index eaeae77..9a0866b 100644
--- a/fs-sim/fs-sim.cabal
+++ b/fs-sim/fs-sim.cabal
@@ -38,10 +38,10 @@ library
     , bytestring         >=0.10 && <0.13
     , containers         >=0.5  && <0.7
     , fs-api             ^>=0.2
-    , io-classes         >=0.3  && <1.4
+    , io-classes         >=0.3  && <1.5
     , mtl
     , QuickCheck
-    , strict-stm         >=0.3  && <1.4
+    , strict-stm         >=0.3  && <1.5
     , text               >=1.2  && <2.2
 
   ghc-options: