diff --git a/extra/qt5-webengine/.SRCINFO b/extra/qt5-webengine/.SRCINFO
index 948729d6c..de7b4ad9b 100644
--- a/extra/qt5-webengine/.SRCINFO
+++ b/extra/qt5-webengine/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = qt5-webengine
 	pkgdesc = Provides support for web applications using the Chromium browser project
 	pkgver = 5.15.16
-	pkgrel = 3
+	pkgrel = 5
 	url = https://www.qt.io
 	arch = x86_64
 	groups = qt5
diff --git a/extra/qt5-webengine/.nvchecker.toml b/extra/qt5-webengine/.nvchecker.toml
new file mode 100644
index 000000000..496066457
--- /dev/null
+++ b/extra/qt5-webengine/.nvchecker.toml
@@ -0,0 +1,6 @@
+[qt5-webengine]
+source = 'git'
+git = 'git://code.qt.io/qt/qtwebengine.git'
+include_regex = 'v(\d.+)-lts'
+from_pattern = 'v(\d.+)-lts'
+to_pattern = '\1'
diff --git a/extra/qt5-webengine/PKGBUILD b/extra/qt5-webengine/PKGBUILD
index 94de13dae..dff9c655a 100644
--- a/extra/qt5-webengine/PKGBUILD
+++ b/extra/qt5-webengine/PKGBUILD
@@ -10,9 +10,9 @@
 highmem=1
 
 pkgname=qt5-webengine
-_basever=5.15.12
+_basever=5.15.13
 pkgver=5.15.16
-pkgrel=3
+pkgrel=5
 arch=('x86_64')
 url='https://www.qt.io'
 license=('LGPL3' 'LGPL2.1' 'BSD')
@@ -74,6 +74,10 @@ prepare() {
 }
 
 build() {
+  # this uses malloc_usable_size, which is incompatible with fortification level 3
+  export CFLAGS="${CFLAGS/_FORTIFY_SOURCE=3/_FORTIFY_SOURCE=2}"
+  export CXXFLAGS="${CXXFLAGS/_FORTIFY_SOURCE=3/_FORTIFY_SOURCE=2}"
+
   cd build
   qmake ../${_pkgfqn} -- \
     -proprietary-codecs \
@@ -87,6 +91,10 @@ build() {
 }
 
 package() {
+  # this uses malloc_usable_size, which is incompatible with fortification level 3
+  export CFLAGS="${CFLAGS/_FORTIFY_SOURCE=3/_FORTIFY_SOURCE=2}"
+  export CXXFLAGS="${CXXFLAGS/_FORTIFY_SOURCE=3/_FORTIFY_SOURCE=2}"
+
   cd build
   make INSTALL_ROOT="$pkgdir" install