diff --git a/libqt5-qtdeclarative.changes b/libqt5-qtdeclarative.changes
index b365a67..5fdbbaf 100644
--- a/libqt5-qtdeclarative.changes
+++ b/libqt5-qtdeclarative.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Mon Jul 17 19:07:46 UTC 2017 - fabian@ritter-vogt.de
+
+- Add patch to fix crash related to shared QQmlEngine instances
+  (QTBUG-61681, kde#381525):
+  * rebuild-qqmldata-propertycache-if-deleted.patch
+
 -------------------------------------------------------------------
 Sat Jul  1 08:13:07 UTC 2017 - lbeltrame@kde.org
 
diff --git a/libqt5-qtdeclarative.spec b/libqt5-qtdeclarative.spec
index ebe2e79..8b6ec6a 100644
--- a/libqt5-qtdeclarative.spec
+++ b/libqt5-qtdeclarative.spec
@@ -35,6 +35,8 @@ Source:         https://download.qt.io/official_releases/qt/5.9/%{real_version}/
 Source1:        baselibs.conf
 # PATCH-FIX-UPSTREAM
 Patch1:         support-non-integer-pixel-ratios-qquickwidget.patch
+# PATCH-FIX-UPSTREAM
+Patch2:         rebuild-qqmldata-propertycache-if-deleted.patch
 # PATCH-FIX-OPENSUSE sse2_nojit.patch -- enable JIT and sse2 only on sse2 case
 Patch100:       sse2_nojit.patch
 BuildRequires:  fdupes
@@ -73,10 +75,11 @@ handling.
 
 %prep
 %setup -q -n qtdeclarative-opensource-src-%{real_version}
+%patch1 -p1
+%patch2 -p1
 %ifarch %ix86
 %patch100 -p1
 %endif
-%patch1 -p1
 
 %package -n %libname
 Summary:        Qt 5 Declarative Library
diff --git a/rebuild-qqmldata-propertycache-if-deleted.patch b/rebuild-qqmldata-propertycache-if-deleted.patch
new file mode 100644
index 0000000..4412edc
--- /dev/null
+++ b/rebuild-qqmldata-propertycache-if-deleted.patch
@@ -0,0 +1,40 @@
+From ab5d4c78224c9ec79165e8890e5f8b8e838e0709 Mon Sep 17 00:00:00 2001
+From: David Edmundson <davidedmundson@kde.org>
+Date: Mon, 10 Jul 2017 17:26:59 +0100
+Subject: [PATCH] Rebuild QQmlData::propertyCache if deleted by another engine
+
+QQmlData is shared between engines, but the relevant QObjectWrapper is
+not. Since 749a7212e903d8e8c6f256edb1836b9449cc7fe1 when a
+QObjectWrapper is deleted it resets the shared QQmlData propertyCache.
+
+In most cases the propertyCache except when a property updated in an
+existing binding in the first engine, where it currently asserts.
+
+Task-number: QTBUG-61681
+Change-Id: I6efdc506e5c7e30b95cda1be282afa9feb781cd2
+Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
+---
+ src/qml/qml/qqmlbinding.cpp | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/src/qml/qml/qqmlbinding.cpp b/src/qml/qml/qqmlbinding.cpp
+index 62288a5..325f752 100644
+--- a/src/qml/qml/qqmlbinding.cpp
++++ b/src/qml/qml/qqmlbinding.cpp
+@@ -515,7 +515,12 @@ void QQmlBinding::getPropertyData(QQmlPropertyData **propertyData, QQmlPropertyD
+     Q_ASSERT(propertyData);
+ 
+     QQmlData *data = QQmlData::get(*m_target, false);
+-    Q_ASSERT(data && data->propertyCache);
++    Q_ASSERT(data);
++
++    if (Q_UNLIKELY(!data->propertyCache)) {
++        data->propertyCache = QQmlEnginePrivate::get(context()->engine)->cache(m_target->metaObject());
++        data->propertyCache->addref();
++    }
+ 
+     *propertyData = data->propertyCache->property(m_targetIndex.coreIndex());
+     Q_ASSERT(*propertyData);
+-- 
+2.7.4
+