diff --git a/community/xulrunner/PKGBUILD b/community/xulrunner/PKGBUILD
index 418a287d6..9b035ccc7 100644
--- a/community/xulrunner/PKGBUILD
+++ b/community/xulrunner/PKGBUILD
@@ -8,8 +8,8 @@
 #  - set extra CFLAG for v5
 
 pkgname=xulrunner
-pkgver=33.0
-pkgrel=2
+pkgver=34.0.5
+pkgrel=1
 pkgdesc="Mozilla Runtime Environment"
 arch=('i686' 'x86_64')
 license=('MPL' 'GPL' 'LGPL')
@@ -23,9 +23,9 @@ source=(ftp://ftp.mozilla.org/pub/mozilla.org/xulrunner/releases/$pkgver/source/
         rhbz-966424.patch)
 options=('!emptydirs' 'staticlibs')
 replaces=('xulrunner-oss')
-sha256sums=('99402cf84949e06bac72d8abbdecde57e8af465727001ed6849a34632f20bcdb'
+sha256sums=('581c2f82f48e2331fdccea33bdbc4d8951694319ebac11eeca30172f622955de'
             '6d9bae5f7bc952583fddff7ae839bc559ae9be784d5021784653963875905489'
-            '23485d937035648add27a7657f6934dc5b295e886cdb0506eebd02a43d07f269'
+            '1aa9ebe67542a2b8c28905d070829ada5b29438c6a7961f2b0cdd6b92d8b9f5c'
             '59d9fc421bc10a5515b73e159f44a72365bf7b7e8b3fc8a8c46043ef40bd3a40'
             '746cb474c5a2c26fc474256e430e035e604b71b27df1003d4af85018fa263f4a')
 
diff --git a/community/xulrunner/mozilla-pkgconfig.patch b/community/xulrunner/mozilla-pkgconfig.patch
index 037d4aee0..6567009d2 100644
--- a/community/xulrunner/mozilla-pkgconfig.patch
+++ b/community/xulrunner/mozilla-pkgconfig.patch
@@ -36,5 +36,5 @@ diff -Nur mozilla-release.orig/xulrunner/installer/mozilla-js.pc.in mozilla-rele
  Version: %MOZILLA_VERSION%
  Requires: %NSPR_NAME% >= %NSPR_VERSION%
  Libs: -L${sdkdir}/lib %MOZ_JS_LINK%
--Cflags: -I${includedir} -DXP_UNIX -DJS_THREADSAFE
-+Cflags: -I${includedir} -I${includedir}/js -DXP_UNIX -DJS_THREADSAFE
+-Cflags: -I${includedir} -DXP_UNIX
++Cflags: -I${includedir} -I${includedir}/js -DXP_UNIX