diff --git a/pkgs/applications/radio/sdr-j-fm/default.nix b/pkgs/applications/radio/sdr-j-fm/default.nix
index 6c1dd5f4a0a1..e77ce2d88eaa 100644
--- a/pkgs/applications/radio/sdr-j-fm/default.nix
+++ b/pkgs/applications/radio/sdr-j-fm/default.nix
@@ -6,7 +6,7 @@
   wrapQtAppsHook,
   pkg-config,
   qtbase,
-  qwt,
+  qwt6_1,
   fftwFloat,
   libsamplerate,
   portaudio,
@@ -37,7 +37,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     qtbase
-    qwt
+    qwt6_1
     fftwFloat
     libsamplerate
     portaudio
diff --git a/pkgs/applications/science/misc/gplates/default.nix b/pkgs/applications/science/misc/gplates/default.nix
index 5c2c4cabc9f1..ae7681a7a3af 100644
--- a/pkgs/applications/science/misc/gplates/default.nix
+++ b/pkgs/applications/science/misc/gplates/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchFromGitHub
+, fetchpatch
 , cmake
 , doxygen
 , graphviz
@@ -42,6 +43,14 @@ in stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-3fEwm5EKK9RcRbnyUejgwfjdsXaujjZjoMbq/BbVMeM=";
   };
 
+  patches = [
+    (fetchpatch {
+      name = "qwt-6.3-compile-error-fix.patch";
+      url = "https://github.com/GPlates/GPlates/commit/c4680ebe54f4535909085feacecd66410a91ff98.patch";
+      hash = "sha256-mw5+GLayMrmcSDd1ai+0JTuY3iedHT9u2kx5Dd2wMjg=";
+    })
+  ];
+
   nativeBuildInputs = [
     cmake
     doxygen
diff --git a/pkgs/development/libraries/qwt/default.nix b/pkgs/development/libraries/qwt/default.nix
index 9a2a53587e48..dec84c1c4955 100644
--- a/pkgs/development/libraries/qwt/default.nix
+++ b/pkgs/development/libraries/qwt/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "qwt";
-  version = "6.2.0";
+  version = "6.3.0";
 
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
     url = "mirror://sourceforge/qwt/qwt-${version}.tar.bz2";
-    sha256 = "sha256-kZT2UTlV0P1zAPZxWBdQZEYBl6urGpL6EnpnpLC3FTA=";
+    sha256 = "sha256-3LCFiWwoquxVGMvAjA7itOYK2nrJKdgmOfYYmFGmEpo=";
   };
 
   propagatedBuildInputs = [ qtbase qtsvg qttools ];