diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eaea7075..bb6b160f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,8 +18,6 @@ jobs:
           - os: macos-14 # macos sonoma on m1; 3 vcpu, 7 GB memory
           - os: ubuntu-22.04 # linux x86_64; 4 vcpu, 16 GB memory
         ghc:
-          - ghc-9-2
-          - ghc-9-4
           - ghc-9-6
     runs-on: ${{ matrix.runner.os }}
     steps:
diff --git a/README.md b/README.md
index 3439b823..0456a0e7 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ Documentation comments use the [Haddock][haddock] format to ensure they are rend
 
 ### Testing compilation
 
-Our default `shell.nix` sets up an environment around the most recent version of GHC that we support. CI also runs tests against a couple of older versions of GHC. To test using any of these versions locally:
+Our default `shell.nix` sets up an environment around the most recent version of GHC that we support. CI used to supporst running tests against a different versions of GHC. To test using any of these versions locally:
 
 ```sh
 cachix use nri              # set up cache so the next step goes faster