diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 6153c68a0dc..c76f0df91f6 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1011,7 +1011,4 @@ self: super: {
     sha256 = "1485bbjca1wqbh3c9yqj85kmq8j7zxq79y5isxypy3r6wjpr3g6b";
   });
 
-  # https://github.com/Daniel-Diaz/matrix/issues/55
-  matrix_0_3_6_0 = dontCheck super.matrix_0_3_6_0;
-
 }
diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
index 2cc3cdb8eba..c910b0856be 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.4.x.nix
@@ -705,7 +705,7 @@ self: super: {
   # Older versions don't compile.
   brick = self.brick_0_35;
   timezone-olson = self.timezone-olson_0_1_9;
-  matrix = self.matrix_0_3_6_0;
+  matrix = self.matrix_0_3_6_1;
 
   # https://github.com/pikajude/th-printf/issues/8
   th-printf = doJailbreak super.th-printf;