diff --git a/0001-Fix-race-condition-generating-docs.patch b/0001-Fix-race-condition-generating-docs.patch
new file mode 100644
index 0000000..09a02ea
--- /dev/null
+++ b/0001-Fix-race-condition-generating-docs.patch
@@ -0,0 +1,34 @@
+From 48c84bd037128d6788ee74786ac5f4aca9727ae9 Mon Sep 17 00:00:00 2001
+From: Antonio Larrosa <alarrosa@suse.com>
+Date: Wed, 20 Dec 2023 13:48:14 +0100
+Subject: [PATCH] Fix race condition generating docs
+
+When doing a parallel build, there's a race condition
+that sometimes builds qtpdf before pdf_attributions is
+generated resulting in an incomplete qtpdf.index file.
+Adding this dependency solves this.
+
+Issue found by Bernhard Wiedemann <bwiedemann@suse.com> while
+testing build reproducibility of packages in openSUSE and
+reported originally at https://bugzilla.opensuse.org/show_bug.cgi?id=1217774
+
+Change-Id: Ia7c0c4c685eeed56e9318871467dc2be6626cc47
+---
+ src/pdf/CMakeLists.txt | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/pdf/CMakeLists.txt b/src/pdf/CMakeLists.txt
+index a50120d3e..c40476f89 100644
+--- a/src/pdf/CMakeLists.txt
++++ b/src/pdf/CMakeLists.txt
+@@ -66,6 +66,7 @@ add_code_attributions_target(
+ )
+ add_dependencies(generate_pdf_attributions run_pdf_GnDone)
+ add_dependencies(docs generate_pdf_attributions)
++add_dependencies(prepare_docs_Pdf generate_pdf_attributions)
+ 
+ ##
+ #   TOOLCHAIN SETUP
+-- 
+2.42.0
+
diff --git a/qt6-webengine.changes b/qt6-webengine.changes
index 4a65c81..9f9e972 100644
--- a/qt6-webengine.changes
+++ b/qt6-webengine.changes
@@ -1,3 +1,11 @@
+-------------------------------------------------------------------
+Wed Dec 20 12:16:07 UTC 2023 - Antonio Larrosa <alarrosa@suse.com>
+
+- Add patch to force pdf_attributions.qdoc to be generated before
+  qtpdf, fixing a race condition that made the docs subpackage
+  build not reproducible (boo#1217774):
+  * 0001-Fix-race-condition-generating-docs.patch
+
 -------------------------------------------------------------------
 Mon Nov 27 14:00:22 UTC 2023 - Christophe Marin <christophe@krop.fr>
 
diff --git a/qt6-webengine.spec b/qt6-webengine.spec
index 0bbf88d..f2b5f7d 100644
--- a/qt6-webengine.spec
+++ b/qt6-webengine.spec
@@ -45,6 +45,8 @@ URL:            https://www.qt.io
 Source:         https://download.qt.io/official_releases/qt/%{short_version}/%{real_version}%{tar_suffix}/submodules/%{tar_name}-%{real_version}%{tar_suffix}.tar.xz
 Source99:       qt6-webengine-rpmlintrc
 # Patches 0-100 are upstream patches #
+# PATCH-FIX-UPSTREAM https://codereview.qt-project.org/c/qt/qtwebengine/+/526880
+Patch0:         0001-Fix-race-condition-generating-docs.patch
 # Patches 100-200 are openSUSE and/or non-upstream(able) patches #
 Patch100:       rtc-dont-use-h264.patch
 #
@@ -129,6 +131,7 @@ BuildRequires:  pkgconfig(libva)
 BuildRequires:  pkgconfig(libwebp)
 BuildRequires:  pkgconfig(libxml-2.0)
 BuildRequires:  pkgconfig(libxslt)
+BuildRequires:  pkgconfig(minizip)
 BuildRequires:  pkgconfig(nss) >= 3.26
 BuildRequires:  pkgconfig(opus) >= 1.3.1
 BuildRequires:  pkgconfig(poppler-cpp)
@@ -149,7 +152,6 @@ BuildRequires:  pkgconfig(xshmfence)
 BuildRequires:  pkgconfig(xt)
 BuildRequires:  pkgconfig(xtst)
 BuildRequires:  pkgconfig(zlib)
-BuildRequires:  pkgconfig(minizip)
 # Picked from chromium.spec
 BuildRequires:  (python3 >= 3.7 or python3-dataclasses)
 %if "%{qt6_flavor}" == "docs"