diff --git a/buildSrc/src/main/java/org/opensearch/gradle/test/rest/RestResourcesPlugin.java b/buildSrc/src/main/java/org/opensearch/gradle/test/rest/RestResourcesPlugin.java
index fcadf35593ce6..9396797536052 100644
--- a/buildSrc/src/main/java/org/opensearch/gradle/test/rest/RestResourcesPlugin.java
+++ b/buildSrc/src/main/java/org/opensearch/gradle/test/rest/RestResourcesPlugin.java
@@ -81,50 +81,52 @@ public void apply(Project project) {
         // tests
         Configuration testConfig = project.getConfigurations().create("restTestConfig");
         project.getConfigurations().create("restTests");
+
+        if (BuildParams.isInternal()) {
+            // core
+            Dependency restTestdependency = project.getDependencies().project(new HashMap<String, String>() {
+                {
+                    put("path", ":rest-api-spec");
+                    put("configuration", "restTests");
+                }
+            });
+            testConfig.withDependencies(s -> s.add(restTestdependency));
+        } else {
+            Dependency dependency = project.getDependencies().create("org.opensearch:rest-api-spec:" + VersionProperties.getOpenSearch());
+            testConfig.withDependencies(s -> s.add(dependency));
+        }
+
         Provider<CopyRestTestsTask> copyRestYamlTestTask = project.getTasks()
             .register("copyYamlTestsTask", CopyRestTestsTask.class, task -> {
                 task.includeCore.set(extension.restTests.getIncludeCore());
                 task.coreConfig = testConfig;
                 task.sourceSetName = SourceSet.TEST_SOURCE_SET_NAME;
-                if (BuildParams.isInternal()) {
-                    // core
-                    Dependency restTestdependency = project.getDependencies().project(new HashMap<String, String>() {
-                        {
-                            put("path", ":rest-api-spec");
-                            put("configuration", "restTests");
-                        }
-                    });
-                    project.getDependencies().add(task.coreConfig.getName(), restTestdependency);
-                } else {
-                    Dependency dependency = project.getDependencies()
-                        .create("org.opensearch:rest-api-spec:" + VersionProperties.getOpenSearch());
-                    project.getDependencies().add(task.coreConfig.getName(), dependency);
-                }
                 task.dependsOn(task.coreConfig);
             });
 
         // api
         Configuration specConfig = project.getConfigurations().create("restSpec"); // name chosen for passivity
         project.getConfigurations().create("restSpecs");
+
+        if (BuildParams.isInternal()) {
+            Dependency restSpecDependency = project.getDependencies().project(new HashMap<String, String>() {
+                {
+                    put("path", ":rest-api-spec");
+                    put("configuration", "restSpecs");
+                }
+            });
+            specConfig.withDependencies(s -> s.add(restSpecDependency));
+        } else {
+            Dependency dependency = project.getDependencies().create("org.opensearch:rest-api-spec:" + VersionProperties.getOpenSearch());
+            specConfig.withDependencies(s -> s.add(dependency));
+        }
+
         Provider<CopyRestApiTask> copyRestYamlSpecTask = project.getTasks()
             .register("copyRestApiSpecsTask", CopyRestApiTask.class, task -> {
                 task.includeCore.set(extension.restApi.getIncludeCore());
                 task.dependsOn(copyRestYamlTestTask);
                 task.coreConfig = specConfig;
                 task.sourceSetName = SourceSet.TEST_SOURCE_SET_NAME;
-                if (BuildParams.isInternal()) {
-                    Dependency restSpecDependency = project.getDependencies().project(new HashMap<String, String>() {
-                        {
-                            put("path", ":rest-api-spec");
-                            put("configuration", "restSpecs");
-                        }
-                    });
-                    project.getDependencies().add(task.coreConfig.getName(), restSpecDependency);
-                } else {
-                    Dependency dependency = project.getDependencies()
-                        .create("org.opensearch:rest-api-spec:" + VersionProperties.getOpenSearch());
-                    project.getDependencies().add(task.coreConfig.getName(), dependency);
-                }
                 task.dependsOn(task.coreConfig);
             });
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d64cd4917707c..2c3521197d7c4 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 f5bdef81deb70..c7f182843385d 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -11,7 +11,7 @@
 
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionSha256Sum=f8b4f4772d302c8ff580bc40d0f56e715de69b163546944f787c87abf209c961
+distributionSha256Sum=258e722ec21e955201e31447b0aed14201765a3bfbae296a46cf60b70e66db70
diff --git a/gradlew b/gradlew
index 1aa94a4269074..f5feea6d6b116 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,8 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
diff --git a/gradlew.bat b/gradlew.bat
index 7101f8e4676fc..9b42019c7915b 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################