diff --git a/README.md b/README.md
index 6afb8000b0e1..f529e48d4714 100644
--- a/README.md
+++ b/README.md
@@ -57,9 +57,7 @@ Java is required for building many parts of LibreOffice. In TDF Wiki article
 [Development/Java](https://wiki.documentfoundation.org/Development/Java), the
 exact modules that depend on Java are listed.
 
-The baseline for Java is Java Development Kit (JDK) Version 17 or later. It is
-possible to build LibreOffice with JDK version 9, but it is no longer supported
-by the JDK vendors, thus it should be avoided.
+The baseline for Java is Java Development Kit (JDK) Version 17 or later.
 
 If you want to use Clang with the LibreOffice compiler plugins, the minimal
 version of Clang is 12.0.1. Since Xcode doesn't provide the compiler plugin
diff --git a/configure.ac b/configure.ac
index 32c2eecfbc7a..189ef4a55222 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2548,7 +2548,7 @@ AC_ARG_WITH(linker-hash-style,
 
 AC_ARG_WITH(jdk-home,
     AS_HELP_STRING([--with-jdk-home=<absolute path to JDK home>],
-        [If you have installed JDK 9 or later on your system please supply the
+        [If you have installed JDK 17 or later on your system please supply the
          path here. Note that this is not the location of the java command but the
          location of the entire distribution. In case of cross-compiling, this
          is the JDK of the host os. Use --with-build-platform-configure-options
@@ -8580,7 +8580,7 @@ if test "$ENABLE_JAVA" != ""; then
         fi
 
         if ! test -f "$with_jdk_home/lib/jvm.lib" -a -f "$with_jdk_home/bin/java.exe"; then
-            AC_MSG_ERROR([No JDK found, pass the --with-jdk-home option (or fix the path) pointing to a $WIN_HOST_BITS-bit JDK >= 9])
+            AC_MSG_ERROR([No JDK found, pass the --with-jdk-home option (or fix the path) pointing to a $WIN_HOST_BITS-bit JDK >= 17])
         fi
     fi
 
@@ -8665,8 +8665,8 @@ if test "$ENABLE_JAVA" != "" -a "$cross_compiling" != "yes"; then
             _jdk=`$JAVAINTERPRETER -version 2>&1 | $AWK -F'"' '{ print \$2 }' | $SED '/^$/d' | $SED s/[[-A-Za-z]]*//`
             _jdk_ver=`echo "$_jdk" | $AWK -F. '{ print (($1 * 100) + $2) * 100 + $3;}'`
 
-            if test "$_jdk_ver" -lt 90000; then
-                AC_MSG_ERROR([JDK is too old, you need at least 9 ($_jdk_ver < 90000)])
+            if test "$_jdk_ver" -lt 170000; then
+                AC_MSG_ERROR([JDK is too old, you need at least 17 ($_jdk_ver < 170000)])
             fi
             dnl TODO: Presumably, the Security Manager will not merely be disallowed, but be
             dnl completely removed in some Java version > 18 (see
@@ -8687,7 +8687,7 @@ if test "$ENABLE_JAVA" != "" -a "$cross_compiling" != "yes"; then
             JAVACFLAGS=-J-Xmx128M
         fi
     else
-        AC_MSG_ERROR([Java not found. You need at least JDK 9])
+        AC_MSG_ERROR([Java not found. You need at least JDK 17])
     fi
 else
     if test -z "$ENABLE_JAVA"; then