diff --git a/pstoedit.spec b/pstoedit.spec
index 9ff7e21..9baeac7 100644
--- a/pstoedit.spec
+++ b/pstoedit.spec
@@ -1,6 +1,6 @@
 Name:           pstoedit
 Version:        3.70
-Release:        9%{?dist}
+Release:        10%{?dist}
 Summary:        Translates PostScript and PDF graphics into other vector formats
 
 Group:          Applications/Productivity
@@ -9,10 +9,10 @@ URL:            http://www.pstoedit.net/
 Source0:        http://downloads.sourceforge.net/pstoedit/pstoedit-%{version}.tar.gz
 
 Patch0:         pstoedit-pkglibdir.patch
+Patch1:					remove-libpng-ldflags.patch
 
 Requires:       ghostscript
 BuildRequires:  gd-devel
-BuildRequires:  libpng-devel
 BuildRequires:  dos2unix
 BuildRequires:  ghostscript
 BuildRequires:  plotutils-devel
@@ -31,7 +31,6 @@ drivers
 Summary:        Headers for developing programs that will use %{name}
 Group:          Development/Libraries
 Requires:       %{name} = %{version}-%{release}
-Requires:       libpng-devel
 
 %description devel
 This package contains the header files needed for developing %{name}
@@ -43,6 +42,7 @@ applications
 
 # correctly load plugins (#1247187)
 %patch0 -p1 -b .pkglibdir
+%patch1 -p1
 
 dos2unix doc/*.htm doc/readme.txt
 
@@ -89,6 +89,9 @@ find $RPM_BUILD_ROOT -type f -name "*.la" -exec rm -f {} ';'
 
 
 %changelog
+* Fri Apr 13 2018 Sebastian Kisela <skisela@redhat.com> - 3.70-10
+- Drop unused libpng dependency
+
 * Fri Feb 09 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.70-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
diff --git a/remove-libpng-ldflags.patch b/remove-libpng-ldflags.patch
new file mode 100644
index 0000000..0b66387
--- /dev/null
+++ b/remove-libpng-ldflags.patch
@@ -0,0 +1,28 @@
+From 421cdbeccccb68589002b24dc6e91b23ccd86bfd Mon Sep 17 00:00:00 2001
+From: Sebastian Kisela <skisela@redhat.com>
+Date: Fri, 13 Apr 2018 09:25:37 +0200
+Subject: [PATCH] Remove LIBPNG_LDFLAGS from config
+
+From version 3.70 upstream seized to use libpng in linking phase
+as the whole png generation is now being done by ghostscript
+itself.
+
+Fixes: #1415258
+---
+ config/pstoedit.pc.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/config/pstoedit.pc.in b/config/pstoedit.pc.in
+index 3131ac5..ffda220 100644
+--- a/config/pstoedit.pc.in
++++ b/config/pstoedit.pc.in
+@@ -7,5 +7,5 @@ Name: pstoedit
+ Description: converts PostScript(TM) and PDF files to other vector graphic formats
+ Version: @VERSION@.0
+ Requires: 
+-Libs: -L@libdir@ -lpstoedit @LIBPNG_LDFLAGS@ @CXX_STD_LIB@ @CXX_RUNTIME_LIB@ @LIBLD_LDFLAGS@
++Libs: -L@libdir@ -lpstoedit @CXX_STD_LIB@ @CXX_RUNTIME_LIB@ @LIBLD_LDFLAGS@
+ Cflags: -I@includedir@
+-- 
+2.14.3
+