diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 0ec9fad1e8a2..d73a69c85833 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1382,13 +1382,6 @@ self: super: {
     sha256 = "1c5ck2ibag2gcyag6rjivmlwdlp5k0dmr8nhk7wlkzq2vh7zgw63";
   });
 
-  # Version bumps have not been merged by upstream yet.
-  # https://github.com/obsidiansystems/dependent-sum-aeson-orphans/pull/5
-  dependent-sum-aeson-orphans = appendPatch super.dependent-sum-aeson-orphans (pkgs.fetchpatch {
-    url = "https://github.com/obsidiansystems/dependent-sum-aeson-orphans/commit/5a369e433ad7e3eef54c7c3725d34270f6aa48cc.patch";
-    sha256 = "1lzrcicvdg77hd8j2fg37z19amp5yna5xmw1fc06zi0j95csll4r";
-  });
-
   # Tests are broken because of missing files in hackage tarball.
   # https://github.com/jgm/commonmark-hs/issues/55
   commonmark-extensions = dontCheck super.commonmark-extensions;