diff --git a/sphinxbase-swig-4.2.0-array-typemap-fix.patch b/sphinxbase-swig-4.2.0-array-typemap-fix.patch
new file mode 100644
index 0000000..668f34b
--- /dev/null
+++ b/sphinxbase-swig-4.2.0-array-typemap-fix.patch
@@ -0,0 +1,67 @@
+--- sphinxbase-5prealpha/swig/typemaps.i	2016-09-24 23:34:08.000000000 +0100
++++ sphinxbase-5prealpha-patched/swig/typemaps.i	2024-01-06 15:24:06.398900383 +0000
+@@ -46,6 +46,7 @@
+ // Typemap for string arrays used in ngram API
+ #if SWIGPYTHON
+ 
++#if SWIG_VERSION < 0x040200
+ %typemap(in) (size_t n, char **ptr) {
+   /* Check if is a list */
+   $1 = 0;
+@@ -55,11 +56,14 @@
+     $2 = (char **) calloc(($1 + 1), sizeof(char *));
+     for (i = 0; i < $1; i++) {
+       PyObject *o = PyList_GetItem($input,i);
+-      $2[i] = SWIG_Python_str_AsChar(o);
++      const char *str = SWIG_Python_str_AsChar(o);
++      if (!str)
++        SWIG_fail;
++      $2[i] = (char *)str;
+     }
+   } else {
+     PyErr_SetString(PyExc_TypeError, "list type expected");
+-    return NULL;
++    SWIG_fail;
+   }
+ }
+ 
+@@ -72,6 +76,39 @@
+     free($2);
+   }
+ }
++#else
++%typemap(in) (size_t n, char **ptr)(PyObject **bytes_array = NULL) {
++  /* Check if is a list */
++  $1 = 0;
++  if (PyList_Check($input)) {
++    int i;
++    $1 = PyList_Size($input);
++    $2 = (char **) calloc(($1 + 1), sizeof(char *));
++    bytes_array = (PyObject **) calloc(($1 + 1), sizeof(PyObject *));
++    for (i = 0; i < $1; i++) {
++      PyObject *o = PyList_GetItem($input,i);
++      const char *str = SWIG_PyUnicode_AsUTF8AndSize(o, NULL, &bytes_array[i]);
++      if (!str)
++        SWIG_fail;
++      $2[i] = (char *)str;
++    }
++  } else {
++    PyErr_SetString(PyExc_TypeError, "list type expected");
++    SWIG_fail;
++  }
++}
++
++%typemap(freearg) (size_t n, char **ptr) {
++  int i;
++  if ($2 != NULL) {
++    for (i = 0; $2[i] != NULL; i++) {
++        Py_XDECREF(bytes_array$argnum[i]);
++    }
++    free($2);
++    free(bytes_array$argnum);
++  }
++}
++#endif
+ 
+ #elif SWIGJAVA
+ %typemap(in) (size_t n, char **ptr) {
diff --git a/sphinxbase.spec b/sphinxbase.spec
index 6b5a48a..baf63c2 100644
--- a/sphinxbase.spec
+++ b/sphinxbase.spec
@@ -8,7 +8,7 @@
 
 Name:           sphinxbase
 Version:        5
-Release:        0.17.%{extraver}%{?dist}
+Release:        0.18.%{extraver}%{?dist}
 Epoch:          1
 Summary:        Common library for CMU Sphinx voice recognition products
 
@@ -22,6 +22,9 @@ Patch0:         sphinxbase-5prealpha-fix-doxy2swig.patch
 # https://github.com/cmusphinx/sphinxbase/pull/90
 Patch1:         sphinxbase-5prealpha-stdbool.patch
 
+# Fix code for SWIG 4.2.0
+Patch2:         sphinxbase-swig-4.2.0-array-typemap-fix.patch
+
 BuildRequires: make
 BuildRequires:  autoconf-archive
 BuildRequires:  bison
@@ -97,6 +100,7 @@ done
 
 %patch0 -p1 -b .fix-doxy2swig
 %patch1 -p1 -b .stdbool
+%patch2 -p1 -b .swig420
 
 %build
 export CPPFLAGS="-I %{_includedir}/%{blaslib}"
@@ -163,6 +167,9 @@ rm -f %{buildroot}%{_libdir}/*.la
 %{python3_sitearch}/sphinxbase
 
 %changelog
+* Thu Jan 25 2024 Jitka Plesnikova <jplesnik@redhat.com> - 1:5-0.18.prealpha
+- Fix for SWIG 4.2.0 update (BZ #2260324)
+
 * Sat Jul 22 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1:5-0.17.prealpha
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild