diff --git a/VERSION.txt b/VERSION.txt
index 0af471c5ca..e38d6297b6 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-5.20.0
+5.20.1
diff --git a/configure b/configure
index 3a3ba31732..9e58e2e7fd 100755
--- a/configure
+++ b/configure
@@ -1,7 +1,7 @@
 #! /bin/sh
 # From configure.ac Revision.
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for libSBML 5.20.0.
+# Generated by GNU Autoconf 2.71 for libSBML 5.20.1.
 #
 # Report bugs to <libsbml-team@googlegroups.com>.
 #
@@ -766,8 +766,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='libSBML'
 PACKAGE_TARNAME='libsbml'
-PACKAGE_VERSION='5.20.0'
-PACKAGE_STRING='libSBML 5.20.0'
+PACKAGE_VERSION='5.20.1'
+PACKAGE_STRING='libSBML 5.20.1'
 PACKAGE_BUGREPORT='libsbml-team@googlegroups.com'
 PACKAGE_URL='http://sbml.org/Software/libSBML'
 
@@ -1662,7 +1662,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures libSBML 5.20.0 to adapt to many kinds of systems.
+\`configure' configures libSBML 5.20.1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1728,7 +1728,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of libSBML 5.20.0:";;
+     short | recursive ) echo "Configuration of libSBML 5.20.1:";;
    esac
   cat <<\_ACEOF
 
@@ -1885,7 +1885,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-libSBML configure 5.20.0
+libSBML configure 5.20.1
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -2484,7 +2484,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by libSBML $as_me 5.20.0, which was
+It was created by libSBML $as_me 5.20.1, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -3469,7 +3469,7 @@ ac_config_headers="$ac_config_headers src/sbml/common/libsbml-package.h"
 ac_config_headers="$ac_config_headers src/sbml/common/libsbml-namespace.h"
 
 
-LIBSBML_VERSION_NUMERIC=52000
+LIBSBML_VERSION_NUMERIC=52001
 
 
 
@@ -28902,7 +28902,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by libSBML $as_me 5.20.0, which was
+This file was extended by libSBML $as_me 5.20.1, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -28967,7 +28967,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-libSBML config.status 5.20.0
+libSBML config.status 5.20.1
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
diff --git a/src/sbml/common/libsbml-version.h b/src/sbml/common/libsbml-version.h
index 79e51dfaaf..4b6d7c7279 100644
--- a/src/sbml/common/libsbml-version.h
+++ b/src/sbml/common/libsbml-version.h
@@ -51,7 +51,7 @@
  *
  * A version string of the form "1.2.3".
  */
-#define LIBSBML_DOTTED_VERSION	"5.20.0"
+#define LIBSBML_DOTTED_VERSION	"5.20.1"
 
 
 /**