diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 8efb371d..0a5efc33 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -18,3 +18,8 @@ updates:
     target-branch: "3.x"
     schedule:
       interval: "daily"
+  - package-ecosystem: "gradle"
+    directory: "/"
+    target-branch: "4.x"
+    schedule:
+      interval: "daily"
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index af955bc0..77511d43 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -46,7 +46,7 @@ jobs:
 
       - run: ./gradlew jacocoTestReport
       - name: Upload coverage report
-        uses: codecov/codecov-action@v5.1.2
+        uses: codecov/codecov-action@v5.3.1
         with:
           files: jacoco*.xml,*Jacoco*.xml
 
diff --git a/gradle.properties b/gradle.properties
index 73fff3f1..fe7b5e87 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-dartSassVersion=1.83.1
+dartSassVersion=1.83.4
 embeddedProtocolVersion=3.1.0
 
 spring5Verison=5.3.39
@@ -6,6 +6,6 @@ spring6Version=6.1.13
 
 org.gradle.caching=true
 org.gradle.parallel=true
-org.gradle.jvmargs=-Xmx1G -XX:MaxMetaspaceSize=512M
+org.gradle.jvmargs=-Xmx1G -XX:MaxMetaspaceSize=768M
 
 android.useAndroidX=true
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index cea7a793..e18bc253 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.12-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/sass-embedded-host/build.gradle b/sass-embedded-host/build.gradle
index bc203d6e..91743a60 100644
--- a/sass-embedded-host/build.gradle
+++ b/sass-embedded-host/build.gradle
@@ -17,7 +17,7 @@ dependencies {
     api project(":sass-embedded-bundled")
     api "org.slf4j:slf4j-api:1.7.36"
 
-    compileOnly 'org.jetbrains:annotations:26.0.1'
+    compileOnly 'org.jetbrains:annotations:26.0.2'
     compileOnly 'androidx.annotation:annotation-jvm:1.9.1'
     compileOnly 'com.google.code.findbugs:jsr305:3.0.2'
     compileOnly 'javax.servlet:javax.servlet-api:4.0.1'
@@ -29,7 +29,7 @@ dependencies {
     optional "org.springframework:spring-core:$spring5Verison"
     optional "org.springframework:spring-webmvc:$spring5Verison"
 
-    testCompileOnly 'org.jetbrains:annotations:26.0.1'
+    testCompileOnly 'org.jetbrains:annotations:26.0.2'
 
     testRuntimeOnly 'org.webjars:bootstrap:5.3.3'
 }
diff --git a/sass-embedded-host/src/main/java/de/larsgrefer/sass/embedded/util/IOUtils.java b/sass-embedded-host/src/main/java/de/larsgrefer/sass/embedded/util/IOUtils.java
index e911cb99..e22e3a71 100644
--- a/sass-embedded-host/src/main/java/de/larsgrefer/sass/embedded/util/IOUtils.java
+++ b/sass-embedded-host/src/main/java/de/larsgrefer/sass/embedded/util/IOUtils.java
@@ -50,7 +50,9 @@ void unzip(ZipInputStream zipInputStream, Path targetPath) throws IOException {
             } else {
                 ensureDirectory(entryFile.getParentFile());
 
-                Files.copy(zipInputStream, entryPath, StandardCopyOption.REPLACE_EXISTING);
+                if (Files.notExists(entryPath) || !entryFile.exists()) {
+                    Files.copy(zipInputStream, entryPath, StandardCopyOption.REPLACE_EXISTING);
+                }
             }
             zipInputStream.closeEntry();
 
diff --git a/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/BundledPackageProviderTest.java b/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/BundledPackageProviderTest.java
index f20c437a..3052dff8 100644
--- a/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/BundledPackageProviderTest.java
+++ b/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/BundledPackageProviderTest.java
@@ -4,7 +4,7 @@
 
 import java.io.IOException;
 
-import static org.junit.jupiter.api.Assertions.*;
+
 class BundledPackageProviderTest {
 
     BundledPackageProvider bundledPackageProvider = new BundledPackageProvider();
diff --git a/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/DartSassPackageProviderTest.java b/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/DartSassPackageProviderTest.java
new file mode 100644
index 00000000..18078f58
--- /dev/null
+++ b/sass-embedded-host/src/test/java/de/larsgrefer/sass/embedded/connection/DartSassPackageProviderTest.java
@@ -0,0 +1,36 @@
+package de.larsgrefer.sass.embedded.connection;
+
+import de.larsgrefer.sass.embedded.SassCompiler;
+import de.larsgrefer.sass.embedded.SassCompilerFactory;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+class DartSassPackageProviderTest {
+
+    DartSassPackageProvider dartSassPackageProvider;
+
+    @BeforeEach
+    void setUp() {
+        dartSassPackageProvider = new BundledPackageProvider();
+    }
+
+    @Test
+    void testConcurrentAccess() throws IOException {
+
+        try (SassCompiler compiler = SassCompilerFactory.bundled()) {
+            assertThat(compiler.getVersion()).isNotNull();
+
+            dartSassPackageProvider.extractPackage();
+            assertThat(compiler.getVersion()).isNotNull();
+
+            dartSassPackageProvider.extractPackage();
+            assertThat(compiler.getVersion()).isNotNull();
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/sass-embedded-protocol/build.gradle b/sass-embedded-protocol/build.gradle
index c890a323..89cb7382 100644
--- a/sass-embedded-protocol/build.gradle
+++ b/sass-embedded-protocol/build.gradle
@@ -19,7 +19,7 @@ repositories {
     }
 }
 
-def protobufVersion = "4.29.2"
+def protobufVersion = "4.29.3"
 
 tasks.withType(com.google.protobuf.gradle.ProtobufExtract).configureEach {
     doFirst {
diff --git a/settings.gradle b/settings.gradle
index 4770abf6..21a93ef9 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -11,9 +11,9 @@ pluginManagement {
 }
 
 plugins {
-    id 'io.freefair.settings.plugin-versions' version '8.11'
+    id 'io.freefair.settings.plugin-versions' version '8.12'
     id 'org.gradle.toolchains.foojay-resolver-convention' version '0.9.0'
-    id "com.gradle.develocity" version "3.19"
+    id "com.gradle.develocity" version "3.19.1"
 }
 
 rootProject.name = 'dart-sass-java'