diff --git a/memtailor-gtest.patch b/memtailor-gtest.patch
index c16fea6..da40318 100644
--- a/memtailor-gtest.patch
+++ b/memtailor-gtest.patch
@@ -1,6 +1,6 @@
---- configure.ac.orig	2020-05-26 17:38:06.000000000 -0600
-+++ configure.ac	2020-07-01 20:02:22.195324025 -0600
-@@ -52,7 +52,7 @@ AS_IF([test "x$with_gtest" == "xdownload
+--- configure.ac.orig	2023-09-16 02:06:33.000000000 -0600
++++ configure.ac	2023-10-16 08:04:57.251773143 -0600
+@@ -53,7 +53,7 @@ AS_IF([test "x$with_gtest" == "xdownload
      fi
    ])],
    [test "x$with_gtest" == "xyes"], [
@@ -9,7 +9,7 @@
        AC_MSG_ERROR([could not find gtest source at path $GTEST_PATH.])
      ])
    ],
-@@ -60,7 +60,8 @@ AS_IF([test "x$with_gtest" == "xdownload
+@@ -61,7 +61,8 @@ AS_IF([test "x$with_gtest" == "xdownload
    [AC_MSG_ERROR([invalid value $with_gtest for with_gtest.])]
  )
  AS_IF([test "x$with_gtest" == "xyes"],
@@ -19,19 +19,19 @@
  AM_CONDITIONAL(with_gtest, test "x$with_gtest" == "xyes")
  
  DEPS_CFLAGS="$GTEST_CFLAGS"
---- Makefile.am.orig	2020-05-26 17:38:06.000000000 -0600
-+++ Makefile.am	2020-07-01 20:01:29.430329069 -0600
+--- Makefile.am.orig	2023-10-16 08:04:57.251773143 -0600
++++ Makefile.am	2023-10-16 08:07:50.694649630 -0600
 @@ -41,7 +41,7 @@ TESTS=unittest
  check_PROGRAMS=$(TESTS)
  
- unittest_CXXFLAGS = -I$(top_srcdir)/src/ -std=gnu++0x
+ unittest_CXXFLAGS = -I$(top_srcdir)/src/ -std=gnu++17
 -unittest_LDADD = $(top_builddir)/libmemtailor.la -lpthread
 +unittest_LDADD = $(top_builddir)/libmemtailor.la -lgtest -lpthread
  
  # test_LIBS=
  unittest_SOURCES=src/test/ArenaTest.cpp src/test/BufferPoolTest.cpp	\
---- src/test/gtestInclude.cpp.orig	2020-05-26 17:38:06.000000000 -0600
-+++ src/test/gtestInclude.cpp	2020-07-01 20:01:29.430329069 -0600
+--- src/test/gtestInclude.cpp.orig	2023-09-16 02:06:33.000000000 -0600
++++ src/test/gtestInclude.cpp	2023-10-16 08:04:57.251773143 -0600
 @@ -5,4 +5,4 @@
  // the compiler flags are the same, which is the whole point of the
  // recommendation to build gtest for each program.
diff --git a/memtailor.spec b/memtailor.spec
index 70e9f9c..77e6b2d 100644
--- a/memtailor.spec
+++ b/memtailor.spec
@@ -1,12 +1,12 @@
 # There have been no releases, so we use a git snapshot
-%global gitdate         20220104
-%global gittag          95dbac776c475f4b1c2b08a8e8c6def14c8aaf9a
+%global gitdate         20230916
+%global gittag          f785005b92a54463dbd5377ab80855a3d2a5f92d
 %global shorttag        %(cut -b -7 <<< %{gittag})
 %global user            Macaulay2
 
 Name:           memtailor
 Version:        1.0
-Release:        23.%{gitdate}.git%{shorttag}%{?dist}
+Release:        24.%{gitdate}.git%{shorttag}%{?dist}
 Summary:        C++ library of special-purpose memory allocators
 
 License:        BSD-3-Clause
@@ -59,10 +59,6 @@ chmod a-x src/test/*.cpp
 # Fix the URL in the pkgconfig file
 sed -i 's/broune/Macaulay2/' build/autotools/memtailor.pc.in
 
-# With gtest 1.13.0, C++14 or later is required. Since CMakeLists.txt already
-# asks for C++17, we might as well match that.
-sed -r -i 's/(-std=gnu\+\+)(0x|11)\b/\117/' Makefile.am
-
 %build
 # Upstream doesn't generate the configure script, and we have altered
 # Makefile.am anyway.
@@ -102,6 +98,10 @@ LD_LIBRARY_PATH=$PWD/.libs make check
 %{_libdir}/pkgconfig/%{name}.pc
 
 %changelog
+* Thu Oct 26 2023 Jerry James <loganjerry@gmail.com> - 1.0-24.20230916.gitf785005
+- Update to latest upstream snapshot
+- Upstream now requires C++17
+
 * Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.0-23.20220104.git95dbac7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
 
diff --git a/sources b/sources
index 68e6a3c..8fd0e0a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Macaulay2-memtailor-95dbac7.tar.gz) = 50eded674dc33d3c55f5ec0f250586106f7e16995baa4e46f21684016066cb41e02ace7d82b38305029b947f474835598a972c39dcb0ead6679566b53549a0df
+SHA512 (Macaulay2-memtailor-f785005.tar.gz) = 147ef22f322a82d5336c004ba9cce055ee94eb7ad93d4271524cbee4713f94b258342f4e31569abac2e29472fdd25df2fad94000496ce46e469b7e074af3c86e