diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1278c9f..567814e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -66,10 +66,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: set up JDK 1.8
+    - name: set up JDK 1.11
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 11
 
     - name: Get gradle version
       run: gradle -v
diff --git a/build-aar.gradle b/build-aar.gradle
index 072ea33..5bace4c 100644
--- a/build-aar.gradle
+++ b/build-aar.gradle
@@ -151,9 +151,9 @@ android {
 //sourceSets.test.java.srcDirs += "../src/test/java"
 
 dependencies {
-    implementation 'net.java.dev.jna:jna:5.6.0@aar'
+    implementation 'net.java.dev.jna:jna:5.8.0@aar'
     //implementation group: 'net.java.dev.jna', name: 'jna', version: '5.7.0@aar'
-    embed 'net.java.dev.jna:jna:5.6.0@aar'
+    embed 'net.java.dev.jna:jna:5.8.0@aar'
 
     implementation fileTree(dir: "libs", include: ["*.jar"])
     implementation 'androidx.appcompat:appcompat:1.2.0'
diff --git a/build-jar.gradle b/build-jar.gradle
index 73ab9e0..8870c02 100644
--- a/build-jar.gradle
+++ b/build-jar.gradle
@@ -52,7 +52,7 @@ repositories {
 dependencies {
     // we need JNA at compile time.
     //implementation 'net.java.dev.jna:jna:5.6.0'
-    implementation group: 'net.java.dev.jna', name: 'jna', version: '5.7.0'
+    implementation group: 'net.java.dev.jna', name: 'jna', version: '5.8.0'
 
     // Use JUnit test framework
     testImplementation 'junit:junit:4.12'
diff --git a/gradle.properties b/gradle.properties
index bcd77c9..2e6bc88 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 libplctag4jProjectVersion=0.9.14
-libplctagProjectVersion=2.4.8
+libplctagProjectVersion=2.4.9
 
 # constant project values
 projectName=libplctag4j
diff --git a/src/main/java/io/github/libplctag/Tag.java b/src/main/java/io/github/libplctag/Tag.java
index 801983f..bcd7e12 100644
--- a/src/main/java/io/github/libplctag/Tag.java
+++ b/src/main/java/io/github/libplctag/Tag.java
@@ -63,7 +63,7 @@ public class Tag {
                 throw e4;
             }
 
-            if(!Tag.checkLibraryVersion(2, 4, 8)) {
+            if(!Tag.checkLibraryVersion(2, 4, 9)) {
                 int version_major = Tag.getLibraryIntAttribute("version_major", 0);
                 int version_minor = Tag.getLibraryIntAttribute("version_minor", 0);
                 int version_patch = Tag.getLibraryIntAttribute("version_patch", 0);