diff --git a/pkgs/development/libraries/qt-5/5.14/default.nix b/pkgs/development/libraries/qt-5/5.14/default.nix
index 3eefd23fde7..926510293b5 100644
--- a/pkgs/development/libraries/qt-5/5.14/default.nix
+++ b/pkgs/development/libraries/qt-5/5.14/default.nix
@@ -87,6 +87,22 @@ let
         stripLen = 1;
         extraPrefix = "src/3rdparty/";
       })
+      # Fix build with GCC 10 (part 1): https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=fad3e27b
+      (fetchpatch {
+        name = "qtwebengine-gcc10-part1.patch";
+        url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=fad3e27bfb50d1e23a07577f087a826b5e00bb1d";
+        sha256 = "0c55j9zww8jyif6wl7jy1qqidgw9fdhiyfjgzhzi85r716m4pwwd";
+        stripLen = 1;
+        extraPrefix = "src/3rdparty/";
+      })
+      # Fix build with GCC 10 (part 2): https://code.qt.io/cgit/qt/qtwebengine-chromium.git/commit/?id=193c5bed
+      (fetchpatch {
+        name = "qtwebengine-gcc10-part2.patch";
+        url = "https://code.qt.io/cgit/qt/qtwebengine-chromium.git/patch/?id=193c5bed1cff123e21b7e6d12f464d6709ace2e3";
+        sha256 = "1jb6s32ara6l4rbn4h3gg95mzv8sd8dl1zpjaqwywf1w7p8ymk86";
+        stripLen = 1;
+        extraPrefix = "src/3rdparty/";
+      })
     ]
       ++ optional stdenv.isDarwin ./qtwebengine-darwin-no-platform-check.patch;
     qtwebkit = [