diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index e16fe9e9..d4449ff9 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -15,11 +15,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ghc: ['9.2.1', '9.0.2', '9.0.1', '8.10.4', '8.8.4', '8.6.5', '8.4.4']
+        ghc: ['9.2.1', '9.0.2', '9.0.1', '8.10.4', '8.8.4', '8.6.5']
         os: [ubuntu-latest, macOS-latest, windows-latest]
-        exclude:
-          - os: macOS-latest
-            ghc: '8.4.4' # fails due to ghc panic
 
     steps:
     - uses: actions/checkout@v2
diff --git a/ChangeLog.md b/ChangeLog.md
index d7676010..2939f83f 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # ChangeLog hie-bios
 
+## TBD - 0.9.0
+
+* Drop support for GHC 8.4 [#331](https://github.com/haskell/hie-bios/pull/331)
+
 ## 2022-01-06 - 0.8.1
 
 * Add support for GHC 9.0.2 [#322](https://github.com/haskell/hie-bios/pull/322)
diff --git a/hie-bios.cabal b/hie-bios.cabal
index 4f4fb120..c8a10f51 100644
--- a/hie-bios.cabal
+++ b/hie-bios.cabal
@@ -1,6 +1,6 @@
 Cabal-Version:          2.2
 Name:                   hie-bios
-Version:                0.8.1
+Version:                0.9.0
 Author:                 Matthew Pickering <matthewtpickering@gmail.com>
 Maintainer:             Matthew Pickering <matthewtpickering@gmail.com>
 License:                BSD-3-Clause
@@ -125,7 +125,7 @@ Extra-Source-Files:     ChangeLog.md
                         tests/projects/stack-with-yaml/stack-with-yaml.cabal
                         tests/projects/stack-with-yaml/src/Lib.hs
 
-tested-with: GHC ==8.4.4 || ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1 || ==9.0.2 || ==9.2.1
+tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1 || ==9.0.2 || ==9.2.1
 
 Library
   Default-Language:     Haskell2010
@@ -163,7 +163,7 @@ Library
                         extra                >= 1.6.14 && < 1.8,
                         exceptions,
                         process              >= 1.6.1 && < 1.7,
-                        ghc                  >= 8.4.1 && < 9.3,
+                        ghc                  >= 8.6.1 && < 9.3,
                         transformers         >= 0.5.2 && < 0.7,
                         temporary            >= 1.2 && < 1.4,
                         text                 >= 1.2.3 && < 1.3,
diff --git a/tests/BiosTests.hs b/tests/BiosTests.hs
index 5e96bc80..32481d60 100644
--- a/tests/BiosTests.hs
+++ b/tests/BiosTests.hs
@@ -439,12 +439,6 @@ stackYamlResolver =
   "lts-14.27" -- GHC 8.6.5
 #elif (defined(MIN_VERSION_GLASGOW_HASKELL) && (MIN_VERSION_GLASGOW_HASKELL(8,6,4,0)))
   "lts-13.19" -- GHC 8.6.4
-#elif (defined(MIN_VERSION_GLASGOW_HASKELL) && (MIN_VERSION_GLASGOW_HASKELL(8,4,4,0)))
-  "lts-12.26" -- GHC 8.4.4
-#elif (defined(MIN_VERSION_GLASGOW_HASKELL) && (MIN_VERSION_GLASGOW_HASKELL(8,4,3,0)))
-  "lts-12.14" -- GHC 8.4.3
-#elif (defined(MIN_VERSION_GLASGOW_HASKELL) && (MIN_VERSION_GLASGOW_HASKELL(8,2,2,0)))
-  "lts-11.22" -- GHC 8.2.2
 #endif
 
 -- ------------------------------------------------------------------