diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
index f8a5c0bb5737..4054e3c7b917 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
@@ -1,6 +1,6 @@
 # pkgs/development/haskell-modules/configuration-hackage2nix.yaml
 
-compiler: ghc-8.6.4
+compiler: ghc-8.6.5
 
 core-packages:
   - array-0.5.3.0
@@ -12,13 +12,13 @@ core-packages:
   - deepseq-1.4.4.0
   - directory-1.3.3.0
   - filepath-1.4.2.1
-  - ghc-8.6.4
-  - ghc-boot-8.6.4
-  - ghc-boot-th-8.6.4
+  - ghc-8.6.5
+  - ghc-boot-8.6.5
+  - ghc-boot-th-8.6.5
   - ghc-compact-0.1.0.0
-  - ghc-heap-8.6.4
+  - ghc-heap-8.6.5
   - ghc-prim-0.5.3
-  - ghci-8.6.4
+  - ghci-8.6.5
   - haskeline-0.7.4.3
   - hpc-0.6.0.3
   - integer-gmp-1.0.2.0
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df4181c4325d..42edb73203d6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7319,7 +7319,7 @@ in
 
   haskell = callPackage ./haskell-packages.nix { };
 
-  haskellPackages = dontRecurseIntoAttrs (haskell.packages.ghc864.override {
+  haskellPackages = dontRecurseIntoAttrs (haskell.packages.ghc865.override {
     overrides = haskell.packageOverrides;
   });