diff --git a/pkgs/misc/drivers/epkowa/default.nix b/pkgs/misc/drivers/epkowa/default.nix
index bdc8b3a75df8..5c9db63a63d9 100644
--- a/pkgs/misc/drivers/epkowa/default.nix
+++ b/pkgs/misc/drivers/epkowa/default.nix
@@ -27,29 +27,22 @@ in
 let plugins = {
   v330 = stdenv.mkDerivation rec {
     name = "iscan-v330-bundle";
-    version = "1.0.1";
-    pluginVersion = "0.2.0";
+    version = "2.30.4";
 
     src = fetchurl {
       url = "https://download2.ebz.epson.net/iscan/plugin/perfection-v330/rpm/x64/iscan-perfection-v330-bundle-${version}.x64.rpm.tar.gz";
-      sha256 = "f6fa455f04cdfbc3d38526573260746e9546830de93ba182d0365f557d2f7df9";
+      sha256 = "16iq5gmfcgkvcx5hixggxgb8lwin5gjdhnq0zabgpfqg11n2w21q";
     };
 
-    buildInputs = [ patchelf rpm ];
+    nativeBuildInputs = [ autoPatchelfHook rpm ];
 
     installPhase = ''
-      ${rpm}/bin/rpm2cpio "plugins/esci-interpreter-perfection-v330-${pluginVersion}-1.x86_64.rpm" | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio plugins/esci-interpreter-perfection-v330-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
       mkdir $out{,/share,/lib}
       cp -r ./usr/share/{iscan-data,esci}/ $out/share/
       cp -r ./usr/lib64/esci $out/lib
       '';
 
-    preFixup = ''
-      lib=$out/lib/esci/libesci-interpreter-perfection-v330.so
-      rpath=${gcc.cc.lib}/lib/
-      patchelf --set-rpath $rpath $lib
-      '';
-
     passthru = {
       registrationCommand = ''
         $registry --add interpreter usb 0x04b8 0x0142 "$plugin/lib/esci/libesci-interpreter-perfection-v330 $plugin/share/esci/esfwad.bin"
@@ -60,28 +53,22 @@ let plugins = {
   };
   x770 =   stdenv.mkDerivation rec {
     pname = "iscan-gt-x770-bundle";
-    version = "1.0.1";
-    pluginVersion = "2.1.2-1";
+    version = "2.30.4";
 
-    nativeBuildInputs = [ patchelf rpm ];
+    nativeBuildInputs = [ autoPatchelfHook rpm ];
     src = fetchurl {
       url = "https://download2.ebz.epson.net/iscan/plugin/gt-x770/rpm/x64/iscan-gt-x770-bundle-${version}.x64.rpm.tar.gz";
-      sha256 = "0m9c60rszzdvq1pqfzygzzrjycm1giy465lj29108j7hsnfcv56r";
+      sha256 = "1cz4z3wz216s77z185m665jcgdslil5gn4dsi118nv1fm17z3jik";
     };
     installPhase = ''
       cd plugins
-      ${rpm}/bin/rpm2cpio iscan-plugin-gt-x770-${pluginVersion}.x86_64.rpm | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio iscan-plugin-gt-x770-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
       mkdir $out
       cp -r usr/share $out
       cp -r usr/lib64 $out/lib
       mv $out/share/iscan $out/share/esci
       mv $out/lib/iscan $out/lib/esci
       '';
-    preFixup = ''
-      lib=$out/lib/esci/libesint7C.so
-      rpath=${gcc.cc.lib}/lib/
-      patchelf --set-rpath $rpath $lib
-      '';
     passthru = {
       registrationCommand = ''
         $registry --add interpreter usb 0x04b8 0x0130 "$plugin/lib/esci/libesint7C $plugin/share/esci/esfw7C.bin"
@@ -92,26 +79,22 @@ let plugins = {
     };
   f720 = stdenv.mkDerivation rec {
     pname = "iscan-gt-f720-bundle";
-    version = "1.0.1";
-    pluginVersion = "0.1.1-2";
+    version = "2.30.4";
 
-    buildInputs = [ patchelf ];
+    nativeBuildInputs= [ autoPatchelfHook ];
+    buildInputs = [ gcc.cc.lib ];
     src = fetchurl {
       url = "https://download2.ebz.epson.net/iscan/plugin/gt-f720/rpm/x64/iscan-gt-f720-bundle-${version}.x64.rpm.tar.gz";
-      sha256 = "0dvikq5ad6wid3lxw1amar8lsbr50g39g6zlmcjxdcsg0wb1qspp";
+      sha256 = "12rivh00n9mhagy5yjl1m0bv7ypbig6brqkxm0a12xy0mjq7yv8y";
     };
     installPhase = ''
       cd plugins
-      ${rpm}/bin/rpm2cpio esci-interpreter-gt-f720-${pluginVersion}.x86_64.rpm | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio esci-interpreter-gt-f720-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
       mkdir $out
       cp -r usr/share $out
       cp -r usr/lib64 $out/lib
       '';
-    preFixup = ''
-      lib=$out/lib/esci/libesci-interpreter-gt-f720.so
-      rpath=${gcc.cc.lib}/lib/
-      patchelf --set-rpath $rpath $lib
-      '';
+
     passthru = {
       registrationCommand = ''
         $registry --add interpreter usb 0x04b8 0x0131 "$plugin/lib/esci/libesci-interpreter-gt-f720 $plugin/share/esci/esfw8b.bin"
@@ -123,32 +106,24 @@ let plugins = {
   };
   s80 = stdenv.mkDerivation rec {
     pname = "iscan-gt-s80-bundle";
-    version = "1.0.1";
-    esciPluginVersion = "0.2.1-1";
-    esdipPluginVersion = "1.0.0-5";
+    version = "2.30.4";
 
-    buildInputs = [ patchelf ];
+    nativeBuildInputs = [ autoPatchelfHook ];
+    buildInputs = [ gcc.cc.lib libtool ];
     src = fetchurl {
       url = "https://download2.ebz.epson.net/iscan/plugin/gt-s80/rpm/x64/iscan-gt-s80-bundle-${version}.x64.rpm.tar.gz";
-      sha256 = "14j11znx5ga2ykpyg6kjg7lbrddyr9pwxrsa82dmdishd1j7zji9";
+      sha256 = "1ran75zsxcdci00jakngkz6p9lj4q483hjapmf80p68rzhpmdr5y";
     };
     installPhase = ''
       cd plugins
-      ${rpm}/bin/rpm2cpio esci-interpreter-gt-s80-${esciPluginVersion}.x86_64.rpm | ${cpio}/bin/cpio -idmv
-      ${rpm}/bin/rpm2cpio iscan-plugin-esdip-${esdipPluginVersion}.ltdl7.x86_64.rpm | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio esci-interpreter-gt-s80-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio iscan-plugin-esdip-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
       mkdir $out
       cp -r usr/share $out
       cp -r usr/lib64 $out/lib
       mkdir $out/share/esci
       '';
-    preFixup = ''
-      rpath=${gcc.cc.lib}/lib/
-      patchelf --set-rpath $rpath $out/lib/esci/libesci-interpreter-gt-s80.so
-      patchelf --set-rpath $rpath $out/lib/esci/libesci-interpreter-gt-s50.so
-      patchelf --set-rpath $rpath $out/lib/iscan/esdip
-      patchelf --set-rpath $rpath $out/lib/iscan/libesdtr.so.0
-      patchelf --set-rpath $rpath $out/lib/iscan/libesdtr2.so.0
-      '';
+
     passthru = {
       registrationCommand = ''
         $registry --add interpreter usb 0x04b8 0x0136 "$plugin/lib/esci/libesci-interpreter-gt-s80.so"
@@ -163,19 +138,19 @@ let plugins = {
   };
   network = stdenv.mkDerivation rec {
     pname = "iscan-nt-bundle";
-    version = "1.0.0";
-    ntPluginVersion = "1.1.1-1";
+    # for the version, look for the driver of XP-750 in the search page
+    version = "2.30.4";
 
     buildInputs = [ stdenv.cc.cc.lib ];
     nativeBuildInputs = [ autoPatchelfHook ];
 
     src = fetchurl {
       url = "https://download2.ebz.epson.net/iscan/general/rpm/x64/iscan-bundle-${version}.x64.rpm.tar.gz";
-      sha256 = "1k3dmv4ml21k6mafvcvgfymb1acpcdxpvyrbfh2yf07jzmn5if4f";
+      sha256 = "1l0y4dy88y91jdq66pxrxqmiwsxwy0rd7x4bh0cw08r4iyhjqprz";
     };
     installPhase = ''
       cd plugins
-      ${rpm}/bin/rpm2cpio iscan-network-nt-${ntPluginVersion}.x86_64.rpm | ${cpio}/bin/cpio -idmv
+      ${rpm}/bin/rpm2cpio iscan-network-nt-*.x86_64.rpm | ${cpio}/bin/cpio -idmv
 
       mkdir $out
       cp -r usr/share $out
@@ -201,11 +176,11 @@ let fwdir = symlinkJoin {
 in
 let iscan-data = stdenv.mkDerivation rec {
   pname = "iscan-data";
-  version = "1.39.0-1";
+  version = "1.39.1-2";
 
   src = fetchurl {
     url = "http://support.epson.net/linux/src/scanner/iscan/iscan-data_${version}.tar.gz";
-    sha256 = "0pvm67gqyvzhnv5qyfbaz802l4sbgvaf0zb8wz60k1wcasb99vv1";
+    sha256 = "04zrvbnxf1k6zinrd13hwnbzscc3qhmwlvx3k2jhjys2lginw7w4";
   };
 
   buildInputs = [
@@ -217,11 +192,11 @@ let iscan-data = stdenv.mkDerivation rec {
 in
 stdenv.mkDerivation rec {
   pname = "iscan";
-  version = "2.30.3-1";
+  version = "2.30.4-2";
 
   src = fetchurl {
     url = "http://support.epson.net/linux/src/scanner/iscan/iscan_${version}.tar.gz";
-    sha256 = "0ryy946h7ddmxh866hfszqfyff1qy4svpsk7w3739v75f4awr9li";
+    sha256 = "1ma76jj0k3bz0fy06fiyl4di4y77rcryb0mwjmzs5ms2vq9rjysr";
   };
 
   nativeBuildInputs = [ pkgconfig ];