diff --git a/VERSION.txt b/VERSION.txt
index 046c40f3d3a..c8420b88690 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-SageMath version 9.1.rc5, Release Date: 2020-05-13
+SageMath version 9.1, Release Date: 2020-05-20
diff --git a/build/pkgs/configure/checksums.ini b/build/pkgs/configure/checksums.ini
index a5c56fa88fe..cf1e0d39191 100644
--- a/build/pkgs/configure/checksums.ini
+++ b/build/pkgs/configure/checksums.ini
@@ -1,4 +1,4 @@
 tarball=configure-VERSION.tar.gz
-sha1=c2afea9541aa6252ed22c19cde388a2e09e26be6
-md5=2d5bafc728cd38695e5039e987cc60c9
-cksum=2473706267
+sha1=7014628894a64d34dd630591909f38b6f093054c
+md5=1b43ec2c96858d07c693c6a3c7a297db
+cksum=3626783792
diff --git a/build/pkgs/configure/package-version.txt b/build/pkgs/configure/package-version.txt
index 5fb5b77761f..f9b6cacd515 100644
--- a/build/pkgs/configure/package-version.txt
+++ b/build/pkgs/configure/package-version.txt
@@ -1 +1 @@
-d15ac822aef8f6e9d3370c2cae7e529163f2fe6a
+765c5cb3e24dd134708eca97e4c52e0221cd94ba
diff --git a/src/bin/sage-version.sh b/src/bin/sage-version.sh
index 79faa00e800..9980a861504 100644
--- a/src/bin/sage-version.sh
+++ b/src/bin/sage-version.sh
@@ -1,5 +1,5 @@
 # Sage version information for shell scripts
 # This file is auto-generated by the sage-update-version script, do not edit!
-SAGE_VERSION='9.1.rc5'
-SAGE_RELEASE_DATE='2020-05-13'
-SAGE_VERSION_BANNER='SageMath version 9.1.rc5, Release Date: 2020-05-13'
+SAGE_VERSION='9.1'
+SAGE_RELEASE_DATE='2020-05-20'
+SAGE_VERSION_BANNER='SageMath version 9.1, Release Date: 2020-05-20'
diff --git a/src/sage/version.py b/src/sage/version.py
index a560520d09e..01ffc37e358 100644
--- a/src/sage/version.py
+++ b/src/sage/version.py
@@ -1,5 +1,5 @@
 # Sage version information for Python scripts
 # This file is auto-generated by the sage-update-version script, do not edit!
-version = '9.1.rc5'
-date = '2020-05-13'
-banner = 'SageMath version 9.1.rc5, Release Date: 2020-05-13'
+version = '9.1'
+date = '2020-05-20'
+banner = 'SageMath version 9.1, Release Date: 2020-05-20'