diff --git a/0001-Add-FLINT-3-support.patch b/0001-Add-FLINT-3-support.patch
new file mode 100644
index 0000000..a15678e
--- /dev/null
+++ b/0001-Add-FLINT-3-support.patch
@@ -0,0 +1,91 @@
+From e8d64832cbbd9c847452186f2da23fed6fb0a0d3 Mon Sep 17 00:00:00 2001
+From: Doug Torrance <dtorrance@piedmont.edu>
+Date: Tue, 19 Dec 2023 08:15:16 -0500
+Subject: [PATCH] Add FLINT 3 support
+
+The various coefficient getting/setting functions that use GMP
+integers/rationals directly have been removed, and so we need to
+convert from GMP <-> FLINT separately.
+
+Closes: #412
+---
+ configure.ac                           |  2 +-
+ source/libnormaliz/HilbertSeries.cpp   | 10 ++++++++--
+ source/libnormaliz/vector_operations.h | 10 ++++++++--
+ 3 files changed, 17 insertions(+), 5 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index e3779ca2..feb90500 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -226,7 +226,7 @@ AS_CASE([$with_flint],
+ AS_IF([test "x$with_flint" != xno],
+     [AC_MSG_CHECKING([whether flint headers and library are available])
+      FLINT_LIBS="-lflint -lmpfr"
+-     AX_CHECK_LIBRARY([FLINT], [flint/flint.h], [flint], [fmpz_poly_set_coeff_mpz],[],[],[$GMP_LIBS])
++     AX_CHECK_LIBRARY([FLINT], [flint/flint.h], [flint], [fmpz_poly_set_coeff_fmpz],[],[],[$GMP_LIBS])
+      AS_IF([test x$ax_cv_have_FLINT = xyes],
+        [
+          CPPFLAGS="$CPPFLAGS $FLINT_CPPFLAGS"
+diff --git a/source/libnormaliz/HilbertSeries.cpp b/source/libnormaliz/HilbertSeries.cpp
+index f536a590..1420f6d7 100644
+--- a/source/libnormaliz/HilbertSeries.cpp
++++ b/source/libnormaliz/HilbertSeries.cpp
+@@ -72,7 +72,10 @@ void flint_poly(fmpz_poly_t flp, const vector<mpz_class>& nmzp) {
+     slong n = (slong)nmzp.size();
+     fmpz_poly_fit_length(flp, n);
+     for (size_t i = 0; i < nmzp.size(); ++i) {
+-        fmpz_poly_set_coeff_mpz(flp, (slong)i, nmzp[i].get_mpz_t());
++        fmpz_t fc;
++        fmpz_init(fc);
++        fmpz_set_mpz(fc, nmzp[i].get_mpz_t());
++        fmpz_poly_set_coeff_fmpz(flp, (slong)i, fc);
+     }
+ }
+ 
+@@ -80,9 +83,12 @@ void nmz_poly(vector<mpz_class>& nmzp, const fmpz_poly_t flp) {
+     size_t n = (size_t)fmpz_poly_length(flp);
+     nmzp.resize(n);
+     mpz_t c;
++    fmpz_t fc;
+     mpz_init(c);
++    fmpz_init(fc);
+     for (size_t i = 0; i < nmzp.size(); ++i) {
+-        fmpz_poly_get_coeff_mpz(c, flp, i);
++        fmpz_poly_get_coeff_fmpz(fc, flp, i);
++        fmpz_get_mpz(c, fc);
+         nmzp[i] = mpz_class(c);
+     }
+     mpz_clear(c);
+diff --git a/source/libnormaliz/vector_operations.h b/source/libnormaliz/vector_operations.h
+index d7b15230..3996bcf7 100644
+--- a/source/libnormaliz/vector_operations.h
++++ b/source/libnormaliz/vector_operations.h
+@@ -547,7 +547,10 @@ inline void vector2fmpq_poly(fmpq_poly_t flp, const std::vector<mpq_class>& poly
+ 
+     fmpq_poly_fit_length(flp, n);
+     for (size_t i = 0; i < poly_vector.size(); ++i) {
+-        fmpq_poly_set_coeff_mpq(flp, (slong)i, poly_vector[i].get_mpq_t());
++        fmpq_t fcurrent_coeff;
++        fmpq_init(fcurrent_coeff);
++        fmpq_set_mpq(fcurrent_coeff, poly_vector[i].get_mpq_t());
++        fmpq_poly_set_coeff_fmpq(flp, (slong)i, fcurrent_coeff);
+     }
+ }
+ 
+@@ -560,8 +563,11 @@ inline void fmpq_poly2vector(std::vector<mpq_class>& poly_vector, const fmpq_pol
+     poly_vector.resize(length);
+     for (slong i = 0; i < length; i++) {
+         mpq_t current_coeff;
++        fmpq_t fcurrent_coeff;
+         mpq_init(current_coeff);
+-        fmpq_poly_get_coeff_mpq(current_coeff, flp, (slong)i);
++        fmpq_init(fcurrent_coeff);
++        fmpq_poly_get_coeff_fmpq(fcurrent_coeff, flp, (slong)i);
++        fmpq_get_mpq(current_coeff, fcurrent_coeff);
+         poly_vector[i] = mpq_class(current_coeff);
+     }
+ }
+-- 
+2.43.0
+
diff --git a/normaliz.changes b/normaliz.changes
index 77faf6a..e215640 100644
--- a/normaliz.changes
+++ b/normaliz.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sat Dec 23 13:42:28 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Add 0001-Add-FLINT-3-support.patch
+
 -------------------------------------------------------------------
 Wed Jun 28 11:59:11 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/normaliz.spec b/normaliz.spec
index 1159554..dda8361 100644
--- a/normaliz.spec
+++ b/normaliz.spec
@@ -26,6 +26,7 @@ Group:          Productivity/Scientific/Math
 URL:            https://www.normaliz.uni-osnabrueck.de/
 
 Source:         https://github.com/Normaliz/Normaliz/releases/download/v%version/%name-%version.tar.gz
+Patch1:         0001-Add-FLINT-3-support.patch
 BuildRequires:  e-antic-devel >= 1.0.1
 BuildRequires:  flint-devel
 BuildRequires:  gcc-c++