diff --git a/make/conf/github-actions.conf b/make/conf/github-actions.conf
index d99f76ae40c..665b3a701eb 100644
--- a/make/conf/github-actions.conf
+++ b/make/conf/github-actions.conf
@@ -29,13 +29,13 @@ GTEST_VERSION=1.13.0
 JTREG_VERSION=7.1.1+1
 
 LINUX_X64_BOOT_JDK_EXT=tar.gz
-LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk19/877d6127e982470ba2a7faa31cc93d04/36/GPL/openjdk-19_linux-x64_bin.tar.gz
-LINUX_X64_BOOT_JDK_SHA256=f47aba585cfc9ecff1ed8e023524e8309f4315ed8b80100b40c7dcc232c12f96
+LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk20/bdc68b4b9cbc4ebcb30745c85038d91d/36/GPL/openjdk-20_linux-x64_bin.tar.gz
+LINUX_X64_BOOT_JDK_SHA256=bb863b2d542976d1ae4b7b81af3e78b1e4247a64644350b552d298d8dc5980dc
 
 MACOS_X64_BOOT_JDK_EXT=tar.gz
-MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk19/877d6127e982470ba2a7faa31cc93d04/36/GPL/openjdk-19_macos-x64_bin.tar.gz
-MACOS_X64_BOOT_JDK_SHA256=bfd33f5b2590fd552ae2d9231340c6b4704a872f927dce1c52860b78c49a5a11
+MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk20/bdc68b4b9cbc4ebcb30745c85038d91d/36/GPL/openjdk-20_macos-x64_bin.tar.gz
+MACOS_X64_BOOT_JDK_SHA256=47cf960d9bb89dbe987535a389f7e26c42de7c984ef5108612d77c81aa8cc6a4
 
 WINDOWS_X64_BOOT_JDK_EXT=zip
-WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk19/877d6127e982470ba2a7faa31cc93d04/36/GPL/openjdk-19_windows-x64_bin.zip
-WINDOWS_X64_BOOT_JDK_SHA256=8fabcee7c4e8d3b53486777ecd27bb906d67d7c1efd1bf22a8290cf659afa487
+WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk20/bdc68b4b9cbc4ebcb30745c85038d91d/36/GPL/openjdk-20_windows-x64_bin.zip
+WINDOWS_X64_BOOT_JDK_SHA256=c92fae5e42b9aecf444a66c8ec563c652f60b1e231dfdd33a4f5a3e3603058fb
diff --git a/make/conf/jib-profiles.js b/make/conf/jib-profiles.js
index 1b866e21207..23192afe7ba 100644
--- a/make/conf/jib-profiles.js
+++ b/make/conf/jib-profiles.js
@@ -390,7 +390,7 @@ var getJibProfilesCommon = function (input, data) {
         };
     };
 
-    common.boot_jdk_version = "19";
+    common.boot_jdk_version = "20";
     common.boot_jdk_build_number = "36";
     common.boot_jdk_home = input.get("boot_jdk", "install_path") + "/jdk-"
         + common.boot_jdk_version
diff --git a/make/conf/version-numbers.conf b/make/conf/version-numbers.conf
index 4a3e5133567..6729593b769 100644
--- a/make/conf/version-numbers.conf
+++ b/make/conf/version-numbers.conf
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2023, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -37,6 +37,6 @@ DEFAULT_VERSION_DATE=2023-09-19
 DEFAULT_VERSION_CLASSFILE_MAJOR=65  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_VERSION_DOCS_API_SINCE=11
-DEFAULT_ACCEPTABLE_BOOT_VERSIONS="19 20 21"
+DEFAULT_ACCEPTABLE_BOOT_VERSIONS="20 21"
 DEFAULT_JDK_SOURCE_TARGET_VERSION=21
 DEFAULT_PROMOTED_VERSION_PRE=ea