diff --git a/srcpkgs/qsynth/template b/srcpkgs/qsynth/template
index 20f4bb98bf7..9b93e6d1eec 100644
--- a/srcpkgs/qsynth/template
+++ b/srcpkgs/qsynth/template
@@ -1,6 +1,6 @@
 # Template file for 'qsynth'
 pkgname=qsynth
-version=0.5.4
+version=0.5.5
 revision=1
 build_style=gnu-configure
 hostmakedepends="pkg-config qt5-tools"
@@ -11,7 +11,7 @@ maintainer="Juan RP <xtraeme@voidlinux.org>"
 license="GPL-2.0-or-later"
 homepage="http://qsynth.sourceforge.io"
 distfiles="${SOURCEFORGE_SITE}/${pkgname}/${pkgname}-${version}.tar.gz"
-checksum=2d6befb4023f8a64f35d802991d0d413e11d0307e87485428c969b94bb2bf84e
+checksum=858f52b95642a25f570342d5cf7fafd2a2addb89d567c5b68a3545beb6fda723
 
 if [ "${CROSS_BUILD}" ]; then
 	hostmakedepends+=" qt5-x11extras-devel"
@@ -19,12 +19,12 @@ fi
 
 post_configure() {
 	# make qmake use the right compiler when cross compiling, flags are recognized
-	sed -i -e "s/\(export QMAKE = .\+\)/\1 QMAKE_CC=$CC QMAKE_CXX=$CXX QMAKE_LINK=$CXX/" Makefile
+	vsed -i -e "s/\(export QMAKE = .\+\)/\1 QMAKE_CC=$CC QMAKE_CXX=$CXX QMAKE_LINK=$CXX/" Makefile
 }
 
 pre_install() {
 	# revert previous changes else installation aborts with
 	# “Could not find qmake configuration file default.”
-	sed -i -e "s/\(export QMAKE = .\+\) QMAKE_CC.\+/\1/" Makefile
+	vsed -i -e "s/\(export QMAKE = .\+\) QMAKE_CC.\+/\1/" Makefile
 }