diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Revsion history of strict-mvar
 
+## next release
+
+### Breaking changes
+
+### Non-breaking changes
+
+## 1.3.0.0
+
+* `io-sim-1.3.0.0`.
+* Support `ghc-9.8`.
+
 ## 1.2.0.0
 
 ### Breaking changes
diff --git a/strict-mvar.cabal b/strict-mvar.cabal
--- a/strict-mvar.cabal
+++ b/strict-mvar.cabal
@@ -1,6 +1,6 @@
 cabal-version:       3.0
 name:                strict-mvar
-version:             1.2.0.0
+version:             1.3.0.0
 synopsis:            Strict MVars for IO and IOSim
 description:
   Strict @MVar@ interface compatible with
@@ -15,7 +15,7 @@
 build-type:          Simple
 extra-doc-files:     CHANGELOG.md README.md
 bug-reports:         https://github.com/input-output-hk/io-sim/issues
-tested-with:         GHC == { 8.10, 9.2, 9.4, 9.6 }
+tested-with:         GHC == { 8.10, 9.2, 9.4, 9.6, 9.8 }
 
 source-repository head
   type:     git
@@ -27,8 +27,8 @@
 
   exposed-modules:     Control.Concurrent.Class.MonadMVar.Strict
   default-language:    Haskell2010
-  build-depends:       base        >= 4.9 && <4.19,
-                       io-classes ^>= 1.2,
+  build-depends:       base        >= 4.9 && <4.20,
+                       io-classes ^>= 1.3,
   ghc-options:         -Wall
                        -Wno-unticked-promoted-constructors
                        -Wcompat
@@ -45,7 +45,7 @@
   other-modules:       Test.Control.Concurrent.Class.MonadMVar.Strict.WHNF
                        Test.Utils
   default-language:    Haskell2010
-  build-depends:       base >=4.9 && <4.19,
+  build-depends:       base >=4.9 && <4.20,
                        io-sim,
                        nothunks,
                        QuickCheck,
diff --git a/test/Test/Control/Concurrent/Class/MonadMVar/Strict/WHNF.hs b/test/Test/Control/Concurrent/Class/MonadMVar/Strict/WHNF.hs
--- a/test/Test/Control/Concurrent/Class/MonadMVar/Strict/WHNF.hs
+++ b/test/Test/Control/Concurrent/Class/MonadMVar/Strict/WHNF.hs
@@ -1,5 +1,4 @@
 {-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
-{-# HLINT ignore "Use camelCase" #-}
 
 -- | Test whether functions on 'StrictMVar's correctly force values to WHNF
 -- before they are put inside the 'StrictMVar'.