diff --git a/jbig2dec.spec b/jbig2dec.spec
index 1e68d00..2c2d65f 100644
--- a/jbig2dec.spec
+++ b/jbig2dec.spec
@@ -1,6 +1,6 @@
 Name:		jbig2dec
 Version:	0.18
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	A decoder implementation of the JBIG2 image compression format 
 License:	AGPLv3+
 URL:		http://jbig2dec.sourceforge.net/
@@ -8,6 +8,7 @@ Source0:	https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download
 Patch1:		jbig2dec-0.17-Restore-ABI-compatibility.patch
 Requires:	%{name}-libs = %{version}-%{release}
 BuildRequires:	libtool
+BuildRequires:	libpng-devel
 
 %description
 jbig2dec is a decoder implementation of the JBIG2 image compression format.
@@ -80,6 +81,9 @@ rm -f %{buildroot}%{_libdir}/*.la
 
 
 %changelog
+* Wed Jul 08 2020 Michael J Gruber <mjg@fedoraproject.org> - 0.18-3
+- build with libpng
+
 * Wed Jul 08 2020 Nikola Forró <nforro@redhat.com> - 0.18-2
 - fix License