diff --git a/VERSION.txt b/VERSION.txt
index bc41459349e..cb8adde50fb 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-SageMath version 9.0.rc0, Release Date: 2019-12-26
+SageMath version 9.0.rc1, Release Date: 2019-12-29
diff --git a/build/pkgs/configure/checksums.ini b/build/pkgs/configure/checksums.ini
index 795047e93d0..7c12cb9892e 100644
--- a/build/pkgs/configure/checksums.ini
+++ b/build/pkgs/configure/checksums.ini
@@ -1,4 +1,4 @@
 tarball=configure-VERSION.tar.gz
-sha1=e7ff5e713229f17fe8323d3def8444c2ae04b3a7
-md5=4fc29cbebd3f969fffdb00caa0ad6423
-cksum=803325929
+sha1=ac323e7a24f9d8ebfcf4d5998ee09cff31e50877
+md5=7d43a45087d30296ff4c9b3ef77597ef
+cksum=1450157022
diff --git a/build/pkgs/configure/package-version.txt b/build/pkgs/configure/package-version.txt
index 87e200886b9..4d8daf05b08 100644
--- a/build/pkgs/configure/package-version.txt
+++ b/build/pkgs/configure/package-version.txt
@@ -1 +1 @@
-127f3664664edef63a333470fc68f24be9edfe68
+7f941838a69eb6bf2715b8217ec5570d780d3622
diff --git a/src/bin/sage-version.sh b/src/bin/sage-version.sh
index 9c7bc8fd683..951a3dd9672 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='9.0.rc0'
-SAGE_RELEASE_DATE='2019-12-26'
-SAGE_VERSION_BANNER='SageMath version 9.0.rc0, Release Date: 2019-12-26'
+SAGE_VERSION='9.0.rc1'
+SAGE_RELEASE_DATE='2019-12-29'
+SAGE_VERSION_BANNER='SageMath version 9.0.rc1, Release Date: 2019-12-29'
diff --git a/src/sage/version.py b/src/sage/version.py
index 2c84331148a..f8526a651dd 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 = '9.0.rc0'
-date = '2019-12-26'
-banner = 'SageMath version 9.0.rc0, Release Date: 2019-12-26'
+version = '9.0.rc1'
+date = '2019-12-29'
+banner = 'SageMath version 9.0.rc1, Release Date: 2019-12-29'