diff --git a/.circleci/config.yml b/.circleci/config.yml
index d753e7d..2c66a78 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -38,11 +38,11 @@ jobs:
 
     <<: *defaults_gradle
 
-  build_gradle_jdk8:
+  build_gradle_jdk21:
     <<: *defaults
 
     docker:
-      - image: cimg/openjdk:8.0
+      - image: cimg/openjdk:21.0
 
     <<: *defaults_gradle
 
@@ -50,5 +50,5 @@ workflows:
   version: 2
   gradle:
     jobs:
-      - build_gradle_jdk8
+      - build_gradle_jdk21
       - build_gradle_jdk17
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 1ab83cc..6dae523 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -11,7 +11,7 @@ jobs:
 
     strategy:
       matrix:
-        java-version: [8, 11, 17]
+        java-version: [17, 21, 24]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1a3e8b4..7f377e0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: gradle:8-jdk11
+image: gradle:8-jdk17
 
 variables:
   GRADLE_OPTS: "-Dorg.gradle.daemon=false"
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 47ba78c..6549be6 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -13,7 +13,7 @@
   <component name="PDMPlugin">
     <option name="skipTestSources" value="false" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/bitbucket-pipelines.yml b/bitbucket-pipelines.yml
index a9514a0..f070ba6 100644
--- a/bitbucket-pipelines.yml
+++ b/bitbucket-pipelines.yml
@@ -1,4 +1,4 @@
-image: maven:3-openjdk-18
+image: maven:3-openjdk-21
 
 pipelines:
   default:
diff --git a/build.gradle.kts b/build.gradle.kts
index 08eb239..109a469 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -38,14 +38,14 @@ dependencies {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
 }
 
 kotlin {
     compilerOptions {
-        jvmTarget.set(JvmTarget.JVM_1_8)
-        languageVersion.set(KotlinVersion.KOTLIN_1_7)
+        jvmTarget.set(JvmTarget.JVM_17)
+        languageVersion.set(KotlinVersion.KOTLIN_2_2)
     }
 }