diff --git a/buildSrc/src/main/groovy/io/spring/gradle/convention/SpringModulePlugin.groovy b/buildSrc/src/main/groovy/io/spring/gradle/convention/SpringModulePlugin.groovy
index 0c1027f4f4..ae39c1c30e 100644
--- a/buildSrc/src/main/groovy/io/spring/gradle/convention/SpringModulePlugin.groovy
+++ b/buildSrc/src/main/groovy/io/spring/gradle/convention/SpringModulePlugin.groovy
@@ -18,7 +18,6 @@ package io.spring.gradle.convention;
 
 import org.gradle.api.Project
 import org.gradle.api.plugins.JavaLibraryPlugin;
-import org.gradle.api.plugins.MavenPlugin;
 import org.gradle.api.plugins.PluginManager
 import org.springframework.gradle.classpath.CheckClasspathForProhibitedDependenciesPlugin;
 import org.springframework.gradle.maven.SpringMavenPlugin;
diff --git a/buildSrc/src/main/groovy/io/spring/gradle/convention/TestsConfigurationPlugin.groovy b/buildSrc/src/main/groovy/io/spring/gradle/convention/TestsConfigurationPlugin.groovy
index 99aac80abe..8d2fffd4d5 100644
--- a/buildSrc/src/main/groovy/io/spring/gradle/convention/TestsConfigurationPlugin.groovy
+++ b/buildSrc/src/main/groovy/io/spring/gradle/convention/TestsConfigurationPlugin.groovy
@@ -43,7 +43,7 @@ public class TestsConfigurationPlugin implements Plugin<Project> {
 		}
 
 		project.tasks.create('testJar', Jar) {
-			classifier = 'test'
+			archiveClassifier = 'test'
 			from project.sourceSets.test.output
 		}
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 249e5832f0..afba109285 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 98debb84d5..c30b486a89 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
+networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index a69d9cb6c2..65dcd68d65 100755
--- a/gradlew
+++ b/gradlew
@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,10 +80,10 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
@@ -143,12 +143,16 @@ fi
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
diff --git a/gradlew.bat b/gradlew.bat
index 53a6b238d4..6689b85bee 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -26,6 +26,7 @@ if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
 if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%