diff --git a/community/gnuradio/PKGBUILD b/community/gnuradio/PKGBUILD
index 253761786..2216ea205 100644
--- a/community/gnuradio/PKGBUILD
+++ b/community/gnuradio/PKGBUILD
@@ -8,8 +8,8 @@
 
 pkgbase=gnuradio
 pkgname=(gnuradio gnuradio-companion)
-pkgver=3.7.11
-pkgrel=6
+pkgver=3.7.13.4
+pkgrel=1
 pkgdesc="General purpose DSP and SDR toolkit.  With drivers for usrp and fcd."
 arch=('x86_64')
 url="http://gnuradio.org"
@@ -36,8 +36,9 @@ source=("https://gnuradio.org/releases/$pkgbase/$pkgbase-$pkgver.tar.gz"
         "https://gnuradio.org/releases/$pkgbase/$pkgbase-$pkgver.tar.gz.asc"
         "21-fcd.rules" "gnuradio-gcc7.patch"
         "boost-1.67.patch" "boost-1.67-pthread.patch")
-validpgpkeys=('B90DDFAC56989BF62262EB812987C77CBB8ED9B2') # GNU Radio Project
-md5sums=('7b7b871237ae6fc109d203f78c4654ef'
+validpgpkeys=('B90DDFAC56989BF62262EB812987C77CBB8ED9B2'  # GNU Radio Project
+              'D74F9F146E7F755783583158B343B2BA293E5174') # Marcus Müller
+md5sums=('b38d9cfa7cb4dcb97f5d19ebcabe8dcb'
          'SKIP'
          '465e12c454c6a22ebec9849181af7bdc'
          'c510104fa2ad9852a683c265c42ae1da'
@@ -53,10 +54,14 @@ prepare() {
   sed -i -e "s|#![ ]*/usr/bin/env /usr/bin/python$|#!/usr/bin/env python2|" \
     $(find ./ -name '*.py')
   # fix build with GCC 7 (Fedora)
-  patch -p1 -i ../gnuradio-gcc7.patch
+  #patch -p1 -N -i ../gnuradio-gcc7.patch
   # https://github.com/gnuradio/gnuradio/pull/1733
-  patch -p1 -i ../boost-1.67.patch
-  patch -p1 -i ../boost-1.67-pthread.patch
+  #patch -p1 -N -i ../boost-1.67.patch
+  #patch -p1 -N -i ../boost-1.67-pthread.patch
+  # GCC 7? 
+  #sed -i 's|SET(CMAKE_CXX_STANDARD 98)|#&|' CMakeLists.txt
+  #sed -i 's|SET(CMAKE_C_FLAGS .* -std=gnu99"|#&|' CMakeLists.txt
+  sed -i '333i ${CMAKE_THREAD_LIBS_INIT}' gr-blocks/lib/CMakeLists.txt
 }
 
 build() {