diff --git a/c/mlrvers.h b/c/mlrvers.h
index 84bf8b6c4..6a56b98a0 100644
--- a/c/mlrvers.h
+++ b/c/mlrvers.h
@@ -1,5 +1,5 @@
 #ifndef MLRVERS_H
 #define MLRVERS_H
 // Manually increment on updates to https://github.com/johnkerl/miller/releases
-#define MLR_VERSION "v5.9.0-dev"
+#define MLR_VERSION "v5.9.1-dev"
 #endif // MLRVERS_H
diff --git a/configure.ac b/configure.ac
index baa40cb3c..2a8c23cc4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 AC_PREREQ([2.60])
 # Manually increment on updates to https://github.com/johnkerl/miller/releases
-AC_INIT([mlr],[5.9.0-dev])
+AC_INIT([mlr],[5.9.1])
 AC_CONFIG_SRCDIR([c/mlrmain.c])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_AUX_DIR([autotools])
diff --git a/miller.spec b/miller.spec
index 6900f2c88..6694fee0d 100644
--- a/miller.spec
+++ b/miller.spec
@@ -1,6 +1,6 @@
 Summary: Name-indexed data processing tool
 Name: miller
-Version: 5.9.0
+Version: 5.9.1
 Release: 1%{?dist}
 License: BSD
 Source: https://github.com/johnkerl/miller/releases/download/%{version}/mlr-%{version}.tar.gz
@@ -35,6 +35,9 @@ make check
 %{_mandir}/man1/mlr.1*
 
 %changelog
+* Wed Sep 02 2020 John Kerl <kerl.john.r@gmail.com> - 5.9.1-1
+- 5.9.1 release
+
 * Wed Aug 19 2020 John Kerl <kerl.john.r@gmail.com> - 5.9.0-1
 - 5.9.0 release