diff --git a/pkgs/development/libraries/arrow-cpp/default.nix b/pkgs/development/libraries/arrow-cpp/default.nix
index 1402fc6ed94605b..d3b736fbe0f0dc3 100644
--- a/pkgs/development/libraries/arrow-cpp/default.nix
+++ b/pkgs/development/libraries/arrow-cpp/default.nix
@@ -1,7 +1,6 @@
 { stdenv
 , lib
 , fetchurl
-, fetchpatch
 , fetchFromGitHub
 , fixDarwinDylibNames
 , abseil-cpp
@@ -113,14 +112,6 @@ stdenv.mkDerivation rec {
   patches = [
     # patch to fix python-test
     ./darwin.patch
-    # in master post 8.0.0, see https://github.com/apache/arrow/pull/13182
-    (fetchpatch {
-      name = "fix-pkg-config.patch";
-      stripLen = 1;
-      excludes = [ "src/arrow/engine/arrow-substrait.pc.in" ]; # for < 8.0.0
-      url = "https://github.com/apache/arrow/commit/a242eb17362c0352fc3291213542c48abfe18669.patch";
-      sha256 = "15gz13f8q75l7d4z5blyvxd805hwfcvrbrxs2kbfal9vcbnirycx";
-    })
   ];
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/openal-soft/default.nix b/pkgs/development/libraries/openal-soft/default.nix
index 434918c0c87bfad..b9471d6819376eb 100644
--- a/pkgs/development/libraries/openal-soft/default.nix
+++ b/pkgs/development/libraries/openal-soft/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake, pkg-config
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config
 , alsaSupport ? !stdenv.isDarwin, alsa-lib
 , dbusSupport ? !stdenv.isDarwin, dbus
 , pipewireSupport ? !stdenv.isDarwin, pipewire
@@ -21,11 +21,6 @@ stdenv.mkDerivation rec {
     # this will make it find its own data files (e.g. HRTF profiles)
     # without any other configuration
     ./search-out.patch
-    # merged after 1.22.0 in https://github.com/kcat/openal-soft/pull/696
-    (fetchpatch {
-      url = "https://github.com/kcat/openal-soft/commit/0bf2abae9b2121c3bc5a56dab30eca308136bc29.patch";
-      sha256 = "1fhjjy7nrhrj3a0wlmsqpf8h3ss6s487vz5jrhamyv04nbcahn20";
-    })
   ];
   postPatch = ''
     substituteInPlace core/helpers.cpp \
diff --git a/pkgs/development/libraries/orcania/default.nix b/pkgs/development/libraries/orcania/default.nix
index 338deafa763ee76..abe45b63372f738 100644
--- a/pkgs/development/libraries/orcania/default.nix
+++ b/pkgs/development/libraries/orcania/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchpatch, fetchFromGitHub, cmake, check, subunit }:
+{ lib, stdenv, fetchFromGitHub, cmake, check, subunit }:
 stdenv.mkDerivation rec {
   pname = "orcania";
   version = "2.3.0";
@@ -10,15 +10,6 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-QAq/6MGVj+iBHLElHuqokF1v3LU1TZ9hVVJE1s3y6f0=";
   };
 
-  # in master post 2.2.2, see https://github.com/babelouest/orcania/issues/27
-  patches = [
-    (fetchpatch {
-      name = "fix-pkg-config.patch";
-      url = "https://github.com/babelouest/orcania/commit/4eac7d5ff76bb3bec8250fef300b723c8891552a.patch";
-      sha256 = "01bsxay1ca8d08ac3ddcqyvjwgz5mgs68jz5y3gzq4qnzl3q1i54";
-    })
-  ];
-
   nativeBuildInputs = [ cmake ];
 
   checkInputs = [ check subunit ];