diff --git a/.github/workflows/github-page.yml b/.github/workflows/github-page.yml
index 2bfe19bd8ec..384ecc3ac7c 100644
--- a/.github/workflows/github-page.yml
+++ b/.github/workflows/github-page.yml
@@ -31,17 +31,17 @@ jobs:
 
     - name: Fetch nix cache and update cabal indices
       run: |
-        nix develop .\#project.x86_64-linux.projectVariants.ghc964.shell --command \
+        nix develop .\#project.x86_64-linux.projectVariants.ghc96.shell --command \
           cabal update
 
     - name: Build whole project
       run: |
-        nix develop .\#project.x86_64-linux.projectVariants.ghc964.shell --command \
+        nix develop .\#project.x86_64-linux.projectVariants.ghc96.shell --command \
           cabal build all
 
     - name: Build documentation
       run: |
-        nix develop .\#project.x86_64-linux.projectVariants.ghc964.shell --command \
+        nix develop .\#project.x86_64-linux.projectVariants.ghc96.shell --command \
           cabal haddock-project --local --output=./haddocks --internal --foreign-libraries
 
     - name: Compress haddocks
diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 3b9bf800118..ea9d34ac183 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         # If you edit these versions, make sure the version in the lonely macos-latest job below is updated accordingly
-        ghc: ["9.6.4", "9.8.1"]
+        ghc: ["9.6", "9.8"]
         cabal: ["3.10.2.1"]
         os: [windows-latest, ubuntu-latest]
         include:
@@ -34,7 +34,7 @@ jobs:
           # We want a single job, because macOS runners are scarce.
           - os: macos-latest
             cabal: "3.10.2.1"
-            ghc: "9.6.4"
+            ghc: "9.6"
 
     env:
       # Modify this value to "invalidate" the cabal cache.
diff --git a/nix/haskell.nix b/nix/haskell.nix
index 229b2331f62..ab23d4e0db7 100644
--- a/nix/haskell.nix
+++ b/nix/haskell.nix
@@ -22,7 +22,7 @@ let
       name = "cardano-node";
       compiler-nix-name = lib.mkDefault "ghc8107";
       # extra-compilers
-      flake.variants = lib.genAttrs ["ghc964"] (x: {compiler-nix-name = x;});
+      flake.variants = lib.genAttrs ["ghc96"] (x: {compiler-nix-name = x;});
       cabalProjectLocal = ''
         repository cardano-haskell-packages-local
           url: file:${CHaP}