diff --git a/binpatch.py b/binpatch.py
deleted file mode 100644
index ab67fdf..0000000
--- a/binpatch.py
+++ /dev/null
@@ -1,52 +0,0 @@
-import sys
-
-OLD_PATH = b"/usr/lib/sox\x00"
-NEW_PATH = b"/var/tmp/sox\x00"
-OUT_PATH =  "/var/tmp/sox\n"
-OLD64_PATH = b"/usr/lib64/sox\x00"
-NEW64_PATH = b"/var/tmp/l/sox\x00"
-OUT64_PATH =  "/var/tmp/l/sox\n"
-
-assert len(OLD_PATH) == len(NEW_PATH)
-assert len(OLD64_PATH) == len(NEW64_PATH)
-
-argv = sys.argv
-wout = sys.stdout.write
-werr = sys.stderr.write
-bye = sys.exit
-
-def p(m, *args):
-    werr(m % args)
-
-def usage():
-    p("Usage: %s <path to libsox>\n", argv[0])
-
-def error(et):
-    def ef():
-        p("%s: %r cannot be binary patched [%s]\n", argv[0], argv[1], et)
-    return ef
-
-def check(c, p):
-    if not c:
-        p()
-        bye(1)
-
-check(len(argv) == 2, usage)
-
-s = b""
-o = ""
-with open(argv[1], 'rb') as f:
-    s = f.read()
-if s.count(OLD_PATH) == 1:
-    check(s.count(OLD64_PATH) == 0, error("OLD64_PATH"))
-    s = s.replace(OLD_PATH, NEW_PATH)
-    o = OUT_PATH
-elif s.count(OLD64_PATH) == 1:
-    check(s.count(OLD_PATH) == 0, error("OLD_PATH"))
-    s = s.replace(OLD64_PATH, NEW64_PATH)
-    o = OUT64_PATH
-else:
-    check(False, error("OLD_PATH/OLD64_PATH"))
-with open(argv[1], 'wb') as f:
-    f.write(s)
-wout(o)
diff --git a/sox.spec b/sox.spec
index 3b719f6..f60505a 100644
--- a/sox.spec
+++ b/sox.spec
@@ -4,15 +4,13 @@ Name: sox
 # This workaround will go away with rebase to 14.4.3
 # it affects Source, %%prep and Version
 Version: 14.4.2.0
-Release: 26%{?dist}
+Release: 27%{?dist}
 License: GPLv2+ and LGPLv2+ and MIT
 # Modified source tarball with libgsm license, without unlicensed liblpc10:
 # _Source: http://downloads.sourceforge.net/%%{name}/%%{name}-%%{version}.tar.gz
 # _Source: %%{name}/%%{name}-%%{version}.modified.tar.gz
 # _Source: %%{name}/%%{name}-14.4.2.modified.tar.bz2
 Source0: https://github.com/i386x/sox-downstream/archive/%{name}-%{version}.modified.tar.gz
-# For %%check:
-Source1: binpatch.py
 URL: http://sox.sourceforge.net/
 # 0000 - 0099: General:
 Patch0: sox-14.4.2-lsx_symbols.patch
@@ -72,8 +70,6 @@ BuildRequires: gsm-devel, wavpack-devel, ladspa-devel, libpng-devel
 BuildRequires: flac-devel, libao-devel, libsndfile-devel, libid3tag-devel
 BuildRequires: pulseaudio-libs-devel, opusfile-devel
 BuildRequires: libtool, libmad-devel, lame-devel, twolame-devel
-# For %%check:
-BuildRequires: python3, time
 
 %description
 SoX (Sound eXchange) is a sound file format converter. SoX can convert
@@ -91,7 +87,6 @@ which will use the SoX sound file format converter.
 
 %prep
 %setup -q -n %{name}-downstream-%{name}-%{version}.modified
-cp ${RPM_SOURCE_DIR}/binpatch.py binpatch.py
 %patch0 -p1
 %patch1 -p1 -b .lpc
 %patch2 -p1
@@ -123,62 +118,6 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/libsox.la
 rm -f $RPM_BUILD_ROOT%{_libdir}/sox/*.la
 rm -f $RPM_BUILD_ROOT%{_libdir}/sox/*.a
 
-%check
-# One does not simply `make installcheck` :(
-# - /usr/lib64/sox is hardwired into libsox, so running `make installcheck`
-#   will fail in mock
-# - our previous workaround involved two kinds of binaries: one to be deployed
-#   and one to be used for running the tests (i.e. one with changeable
-#   /usr/lib64/sox path); this works, but also slows down building time
-# - in our current workaround, we:
-#   1. backup the original libsox
-libsox_so="${RPM_BUILD_ROOT}%{_libdir}/libsox.so"
-[[ -L $libsox_so ]] && libsox_so=$(readlink -e $libsox_so) || :
-[[ -z "$libsox_so" ]] && {
-  echo "Path to libsox.so cannot be resolved" >&2
-  exit 1
-}
-[[ -f "$libsox_so" ]] || {
-  echo "$libsox_so is not a file" >&2
-  exit 1
-}
-cp $libsox_so $libsox_so.orig
-#   2. replace /usr/lib{,64}/sox in libsox that it points to an existing
-#      alternative directory with plugins
-#      Note: binpatch.py suppose that path to plugins is /usr/lib{,64}/sox;
-#            hence, we use /var/tmp/{,l/}sox as an alternative path to plugins
-#            (note that strlen /usr/lib{,64}/sox == strlen /var/tmp/{,l/}sox);
-#            please do not replace /var/tmp with %%{_tmppath} as you are not
-#            100%% sure that %%{_tmppath} == /var/tmp
-#      Note: We cannot simply replace /usr/lib64/sox by /var/tmp/sox\0\0 since
-#            GCC may save "sox" as (&"/usr/lib64/sox" + 11) and "sox" string
-#            constant will be then interpreted as "x"
-plugins_path=$(python3 binpatch.py $libsox_so)
-[[ -z "$plugins_path" ]] && {
-  echo "$libsox_so cannot be patched" >&2
-  exit 1
-}
-#   3. make the alternative directory, copy plugins to it
-mkdir -p $plugins_path
-for l in ${RPM_BUILD_ROOT}%{_libdir}/sox/libsox_fmt_*.so; do
-  cp $l $plugins_path/$(basename $l)
-done
-#   4. setup environment variables that the system knows where to find sox
-#      binaries and libraries
-PATH=${RPM_BUILD_ROOT}%{_bindir}:$PATH
-export PATH
-LD_LIBRARY_PATH=${RPM_BUILD_ROOT}%{_libdir}:$LD_LIBRARY_PATH
-export LD_LIBRARY_PATH
-#   5. make installcheck
-make installcheck DESTDIR=$RPM_BUILD_ROOT
-#   6. remove temporaries
-[[ -d /var/tmp/l ]] && rm -rfd /var/tmp/l || :
-[[ -d /var/tmp/sox ]] && rm -rfd /var/tmp/sox || :
-rm $libsox_so
-#   7. restore original libsox
-mv $libsox_so.orig $libsox_so
-# (in the future, the above will be moved under the CI tests)
-
 %ldconfig_scriptlets
 
 %files
@@ -203,6 +142,9 @@ mv $libsox_so.orig $libsox_so
 
 
 %changelog
+* Wed Jan 29 2020 Jiri Kucera <jkucera@redhat.com> - 14.4.2.0-27
+- remove %%check (we use Fedora CI instead in a future)
+
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 14.4.2.0-26
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild