diff --git a/gnuplot-5.4.4-grep.patch b/gnuplot-5.4.4-grep.patch
new file mode 100644
index 0000000..77c9106
--- /dev/null
+++ b/gnuplot-5.4.4-grep.patch
@@ -0,0 +1,51 @@
+From 7f7eb181d5be89425d1a9baae0eb49d9f5420590 Mon Sep 17 00:00:00 2001
+From: Andreas Stieger <Andreas.Stieger@gmx.de>
+Date: Tue, 27 Sep 2022 20:25:34 +0200
+Subject: [PATCH] Convert all calls of egrep/fgrep to grep -E / grep -F,
+ respectively
+References: https://bugzilla.opensuse.org/show_bug.cgi?id=1203093 https://sourceforge.net/p/gnuplot/gnuplot-main/merge-requests/22/
+
+Avoids warnings with GNU grep 3.8 and prepares for ultimate removal
+---
+ config/makefile.cyg | 2 +-
+ docs/Makefile.am    | 4 ++--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/config/makefile.cyg b/config/makefile.cyg
+index e6e3bc59f..eb6b5bcad 100644
+--- a/config/makefile.cyg
++++ b/config/makefile.cyg
+@@ -357,7 +357,7 @@ ifdef SORT_TERMINALS
+ # sort alphabetically all terminals (note: req. GNU sort, not from MS)
+ allterm.h: $(CORETERM)
+ 	@echo "Building allterm.h"
+-	@for e in `egrep "^[ 	]*START_HELP" $(CORETERM) |\
++	@for e in `grep -E "^[ 	]*START_HELP" $(CORETERM) |\
+ 	     $(GNUSORT) -f -t':' -k2` ; do \
+ 	  f=`echo $$e |cut -d\: -f1` ; s=`echo $$e | cut -d\: -f2` ;\
+ 	  sed -n "/^[ 	]*$$s/,/^[ 	]*END_HELP/p" $$f ; \
+diff --git a/docs/Makefile.am b/docs/Makefile.am
+index f94eea28b..2e867d0db 100644
+--- a/docs/Makefile.am
++++ b/docs/Makefile.am
+@@ -135,7 +135,7 @@ LUA_HELP =
+ endif
+ 
+ allterm.h: $(CORETERM) $(LUA_HELP)
+-	$(AM_V_GEN) for e in `egrep "^[ 	]*START_HELP" $(CORETERM) |\
++	$(AM_V_GEN) for e in `grep -E "^[ 	]*START_HELP" $(CORETERM) |\
+ 	     LC_ALL=C sort -f -t':' -k2` ; do \
+ 	  f=`echo $$e |cut -d\: -f1` ; s=`echo $$e | cut -d\: -f2` ;\
+ 	  sed -n "/^[ 	]*$$s/,/^[ 	]*END_HELP/p" $$f ; \
+@@ -386,7 +386,7 @@ install-info: gnuplot.info
+ 	$(AM_V_at) $(top_srcdir)/mkinstalldirs $(DESTDIR)$(infodir)
+ 	$(AM_V_at) $(INSTALL_DATA) gnuplot.info $(DESTDIR)$(infodir)/gnuplot.info
+ 	$(AM_V_at) if (install-info --version && \
+-	     install-info --version | fgrep -i -v debian) >/dev/null 2>&1; then \
++	     install-info --version | grep -F -i -v debian) >/dev/null 2>&1; then \
+ 	  install-info --info-dir=$(DESTDIR)$(infodir) $(DESTDIR)$(infodir)/gnuplot.info || : ;\
+ 	else : ; fi
+ 
+-- 
+2.37.3
+
diff --git a/gnuplot-doc.changes b/gnuplot-doc.changes
index e8cace1..799b888 100644
--- a/gnuplot-doc.changes
+++ b/gnuplot-doc.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Sep 27 18:34:50 UTC 2022 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- remove warnings with GNU grep 3.8 and fix build with egrep/fgrep
+  removed boo#1203092 - add gnuplot-5.4.4-grep.patch
+
 -------------------------------------------------------------------
 Tue Jul 19 08:15:29 UTC 2022 - Dr. Werner Fink <werner@suse.de>
 
@@ -29,6 +35,7 @@ Tue Jul 19 08:15:29 UTC 2022 - Dr. Werner Fink <werner@suse.de>
   * gnuplot-4.6.0-fonts.diff
   * gnuplot-4.6.0.dif
   * gnuplot-gd.patch
+- Refresh Gnuplot_5_4.pdf
 
 -------------------------------------------------------------------
 Sun Jun 19 17:31:46 UTC 2022 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
diff --git a/gnuplot.changes b/gnuplot.changes
index 2ba38f6..799b888 100644
--- a/gnuplot.changes
+++ b/gnuplot.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Sep 27 18:34:50 UTC 2022 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- remove warnings with GNU grep 3.8 and fix build with egrep/fgrep
+  removed boo#1203092 - add gnuplot-5.4.4-grep.patch
+
 -------------------------------------------------------------------
 Tue Jul 19 08:15:29 UTC 2022 - Dr. Werner Fink <werner@suse.de>
 
diff --git a/gnuplot.spec b/gnuplot.spec
index 86a4235..3225ab9 100644
--- a/gnuplot.spec
+++ b/gnuplot.spec
@@ -107,6 +107,7 @@ Patch5:         gnuplot-wx3.diff
 Patch6:         gnuplot-QtCore-PIC.dif
 Patch7:         gnuplot-gd.patch
 Patch8:         gnuplot-PIE.patch
+Patch9:         gnuplot-5.4.4-grep.patch
 %define _x11lib     %{_libdir}
 %define _x11data    %{_datadir}/X11
 %define _libx11     %{_exec_prefix}/lib/X11
@@ -142,6 +143,7 @@ cp %{_sourcedir}/picins.sty docs
 %patch6 -p0 -b .pic
 %patch7 -p1 -b .gd
 %patch8 -p1 -b .pie
+%patch9 -p1 -b .grep
 
 %build
 autoreconf -fi