diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
index 21b1a411550a..8817ba0c6528 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
@@ -70,6 +70,9 @@ self: super: {
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   # Becomes a core package in GHC >= 9.0
   ghc-bignum = lib.pipe self.ghc-bignum_1_0 [
diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
index 013d3086063b..842037de9305 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.0.x.nix
@@ -72,6 +72,9 @@ self: super: {
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   # Only required for ghc >= 9.2
   nothunks = super.nothunks.override {
diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.2.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.2.x.nix
index 13a69e721cb0..f82aef3a706e 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.2.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.2.x.nix
@@ -66,6 +66,9 @@ self: super: {
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   # Becomes a core package in GHC >= 9.8
   semaphore-compat = doDistribute self.semaphore-compat_1_0_0;
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 eb3f0b0c4bb8..85c11873024c 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.4.x.nix
@@ -61,6 +61,9 @@ self: super: {
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   # only broken for >= 9.6
   calligraphy = doDistribute (unmarkBroken super.calligraphy);
diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.6.x.nix
index c86ec1cd6781..395491eebe2a 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.6.x.nix
@@ -69,6 +69,9 @@ in
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   # Needs base-orphans for GHC < 9.8 / base < 4.19
   some = addBuildDepend self.base-orphans super.some;
diff --git a/pkgs/development/haskell-modules/configuration-ghc-9.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-9.8.x.nix
index b01b3665d923..24d99e75a43c 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-9.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-9.8.x.nix
@@ -69,6 +69,9 @@ in
 
   # Becomes a core package in GHC >= 9.10, no release compatible with GHC < 9.10 is available
   ghc-internal = null;
+  # Become core packages in GHC >= 9.10, but aren't uploaded to Hackage
+  ghc-toolchain = null;
+  ghc-platform = null;
 
   #
   # Version upgrades