diff --git a/cmake/autogenerated_versions.txt b/cmake/autogenerated_versions.txt
index 03247b4b3ea..2435335f669 100644
--- a/cmake/autogenerated_versions.txt
+++ b/cmake/autogenerated_versions.txt
@@ -2,11 +2,11 @@
 
 # NOTE: has nothing common with DBMS_TCP_PROTOCOL_VERSION,
 # only DBMS_TCP_PROTOCOL_VERSION should be incremented on protocol changes.
-SET(VERSION_REVISION 54455)
+SET(VERSION_REVISION 54454)
 SET(VERSION_MAJOR 21)
-SET(VERSION_MINOR 10)
+SET(VERSION_MINOR 9)
 SET(VERSION_PATCH 1)
-SET(VERSION_GITHASH 09df5018f95edcd0f759d4689ac5d029dd400c2a)
-SET(VERSION_DESCRIBE v21.10.1.1-testing)
-SET(VERSION_STRING 21.10.1.1)
+SET(VERSION_GITHASH f063e44131a048ba2d9af8075f03700fd5ec3e69)
+SET(VERSION_DESCRIBE v21.9.1.7770-prestable)
+SET(VERSION_STRING 21.9.1.7770)
 # end of autochange
diff --git a/debian/changelog b/debian/changelog
index f3e740d20cf..38f740ae062 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,5 +1,5 @@
-clickhouse (21.10.1.1) unstable; urgency=low
+clickhouse (21.9.1.1) unstable; urgency=low
 
   * Modified source code
 
- -- clickhouse-release <clickhouse-release@yandex-team.ru>  Sat, 17 Jul 2021 08:45:03 +0300
+ -- clickhouse-release <clickhouse-release@yandex-team.ru>  Sat, 10 Jul 2021 08:22:49 +0300
diff --git a/docker/client/Dockerfile b/docker/client/Dockerfile
index 052e008fd56..f17fa8ade16 100644
--- a/docker/client/Dockerfile
+++ b/docker/client/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:18.04
 
 ARG repository="deb https://repo.clickhouse.tech/deb/stable/ main/"
-ARG version=21.10.1.*
+ARG version=21.9.1.*
 
 RUN apt-get update \
     && apt-get install --yes --no-install-recommends \
diff --git a/docker/server/Dockerfile b/docker/server/Dockerfile
index 25f01230c5f..5da9e703f4d 100644
--- a/docker/server/Dockerfile
+++ b/docker/server/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:20.04
 
 ARG repository="deb https://repo.clickhouse.tech/deb/stable/ main/"
-ARG version=21.10.1.*
+ARG version=21.9.1.*
 ARG gosu_ver=1.10
 
 # set non-empty deb_location_url url to create a docker image
diff --git a/docker/test/Dockerfile b/docker/test/Dockerfile
index 62cfcf9e896..5768753cd7c 100644
--- a/docker/test/Dockerfile
+++ b/docker/test/Dockerfile
@@ -1,7 +1,7 @@
 FROM ubuntu:18.04
 
 ARG repository="deb https://repo.clickhouse.tech/deb/stable/ main/"
-ARG version=21.10.1.*
+ARG version=21.9.1.*
 
 RUN apt-get update && \
     apt-get install -y apt-transport-https dirmngr && \