diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix
index 168e8cc9a77e..ed7c0e7cbaa0 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix
@@ -211,7 +211,7 @@ in {
   # https://github.com/tweag/ormolu/issues/941
   fourmolu = overrideCabal (drv: {
     libraryHaskellDepends = drv.libraryHaskellDepends ++ [ self.file-embed ];
-  }) (disableCabalFlag "fixity-th" super.fourmolu_0_10_0_0);
+  }) (disableCabalFlag "fixity-th" super.fourmolu_0_10_1_0);
 
   # Apply workaround for Cabal 3.8 bug https://github.com/haskell/cabal/issues/8455
   # by making `pkg-config --static` happy. Note: Cabal 3.9 is also affected, so
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index da366910a8d7..fc1da79172ff 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -134,7 +134,7 @@ extra-packages:
   - retrie < 1.2.0.0                    # 2022-12-30: required for hls on ghc < 9.2
   - ghc-tags == 1.5.*                   # 2023-02-18: preserve for ghc-lib == 9.2.*
   - primitive == 0.7.4.0                # 2023-03-04: primitive 0.8 is not compatible with too many packages on ghc 9.4 as of now
-  - fourmolu == 0.10.0.0                # 2023-04-03: for hls-fourmolu-plugin 1.1.1.0
+  - fourmolu == 0.10.1.0                # 2023-04-18: for hls-fourmolu-plugin 1.1.1.0
 
 package-maintainers:
   abbradar:
diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index c9f59d265449..bf5fe55584ce 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -1083,11 +1083,11 @@ self: super: builtins.intersectAttrs super {
   }) super.fourmolu;
 
   # Test suite wants to run main executable
-  fourmolu_0_10_0_0 = overrideCabal (drv: {
+  fourmolu_0_10_1_0 = overrideCabal (drv: {
     preCheck = drv.preCheck or "" + ''
       export PATH="$PWD/dist/build/fourmolu:$PATH"
     '';
-  }) super.fourmolu_0_10_0_0;
+  }) super.fourmolu_0_10_1_0;
 
   # Test suite needs to execute 'disco' binary
   disco = overrideCabal (drv: {