diff --git a/swift-ci/master/amazon-linux/2/Dockerfile b/swift-ci/master/amazon-linux/2/Dockerfile
index 50af5a97..0d64ee62 100644
--- a/swift-ci/master/amazon-linux/2/Dockerfile
+++ b/swift-ci/master/amazon-linux/2/Dockerfile
@@ -47,7 +47,7 @@ RUN mkdir -p /usr/local/lib/python3.7/site-packages/
 RUN easy_install-3.7 six
 
 ARG SWIFT_PLATFORM=amazonlinux2
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org
diff --git a/swift-ci/master/centos/7/Dockerfile b/swift-ci/master/centos/7/Dockerfile
index 4d38603a..48e55bdd 100644
--- a/swift-ci/master/centos/7/Dockerfile
+++ b/swift-ci/master/centos/7/Dockerfile
@@ -45,7 +45,7 @@ RUN echo -e ". /opt/rh/sclo-git25/enable\n. /opt/rh/devtoolset-8/enable\n" >> /h
 RUN sed -i -e 's/\*__block/\*__libc_block/g' /usr/include/unistd.h
 
 ARG SWIFT_PLATFORM=centos7
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org
diff --git a/swift-ci/master/rhel-ubi/9/Dockerfile b/swift-ci/master/rhel-ubi/9/Dockerfile
index 3489c70a..b1b9fff5 100644
--- a/swift-ci/master/rhel-ubi/9/Dockerfile
+++ b/swift-ci/master/rhel-ubi/9/Dockerfile
@@ -21,7 +21,7 @@ RUN yum install -y  \
   zip
 
 ARG SWIFT_PLATFORM=ubi9
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org
diff --git a/swift-ci/master/ubuntu/18.04/Dockerfile b/swift-ci/master/ubuntu/18.04/Dockerfile
index 1229864e..7db0a5a8 100644
--- a/swift-ci/master/ubuntu/18.04/Dockerfile
+++ b/swift-ci/master/ubuntu/18.04/Dockerfile
@@ -34,7 +34,7 @@ RUN apt -y update && apt -y install \
   zip
 
 ARG SWIFT_PLATFORM=ubuntu18.04
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org
diff --git a/swift-ci/master/ubuntu/20.04/Dockerfile b/swift-ci/master/ubuntu/20.04/Dockerfile
index 4b9fec3b..09198dbd 100644
--- a/swift-ci/master/ubuntu/20.04/Dockerfile
+++ b/swift-ci/master/ubuntu/20.04/Dockerfile
@@ -34,7 +34,7 @@ RUN apt-get -y update && apt-get -y install \
   zip
 
 ARG SWIFT_PLATFORM=ubuntu20.04
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org
diff --git a/swift-ci/master/ubuntu/22.04/Dockerfile b/swift-ci/master/ubuntu/22.04/Dockerfile
index 9f9044f2..abacc621 100644
--- a/swift-ci/master/ubuntu/22.04/Dockerfile
+++ b/swift-ci/master/ubuntu/22.04/Dockerfile
@@ -34,7 +34,7 @@ RUN apt-get -y update && apt-get -y install \
   zip
 
 ARG SWIFT_PLATFORM=ubuntu22.04
-ARG SWIFT_VERSION=5.8.1
+ARG SWIFT_VERSION=5.9.0
 ARG SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
 ARG SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
 ARG SWIFT_WEBROOT=https://download.swift.org