diff --git a/pkgs/tools/security/opensc/default.nix b/pkgs/tools/security/opensc/default.nix
index a9eea81c4e83..735f7558e7a8 100644
--- a/pkgs/tools/security/opensc/default.nix
+++ b/pkgs/tools/security/opensc/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, autoreconfHook, pkgconfig, zlib, readline, openssl
-, libiconv, pcsclite, libassuan, libXt, fetchpatch
+, libiconv, pcsclite, libassuan, libXt
 , docbook_xsl, libxslt, docbook_xml_dtd_412
 , Carbon, PCSC, buildPackages
 , withApplePCSC ? stdenv.isDarwin
@@ -7,30 +7,15 @@
 
 stdenv.mkDerivation rec {
   pname = "opensc";
-  version = "0.20.0";
+  version = "0.21.0";
 
   src = fetchFromGitHub {
     owner = "OpenSC";
     repo = "OpenSC";
     rev = version;
-    sha256 = "0mg8qmhww3li1isfgvn5hang1hq58zra057ilvgci88csfziv5lv";
+    sha256 = "sha256-OjOfA1pIu8NeN+hPuow5UVMKsg0PrsLojw5h05/Qm+o=";
   };
 
-  patches = [
-    (fetchpatch {
-      # https://nvd.nist.gov/vuln/detail/CVE-2020-26570
-      name = "CVE-2020-26570.patch";
-      url = "https://github.com/OpenSC/OpenSC/commit/6903aebfddc466d966c7b865fae34572bf3ed23e.patch";
-      sha256 = "sha256-aB9iCVcdp9zFhZiSv5A399Ttj7NUHRVgXr0EfmMwKN4=";
-    })
-    (fetchpatch {
-      # https://nvd.nist.gov/vuln/detail/CVE-2020-26572
-      name = "CVE-2020-26572.patch";
-      url = "https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817.patch";
-      sha256 = "sha256-gKJaR5K+NaXh4NeTkGpzHzHCdpt6n54Hnt1GAq0tA9o=";
-    })
-  ];
-
   nativeBuildInputs = [ pkgconfig autoreconfHook ];
   buildInputs = [
     zlib readline openssl libassuan