diff --git a/build.gradle b/build.gradle
index 0e2c097b..645a8825 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,7 +40,7 @@ allprojects {
     // Set Kotlin JVM target to the same for all subprojects
     tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
         kotlinOptions {
-            jvmTarget = "1.8"
+            jvmTarget = "11"
         }
     }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 1d2efe6e..63a02374 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,9 +1,9 @@
 [versions]
 # You need to run ./gradlew wrapper after updating the version
-gradle                 = "7.5.1"
+gradle                 = "7.6"
 
 navigation             = "2.5.3"
-gradlePlugin           = "7.3.1"
+gradlePlugin           = "7.4.0"
 androidxcore           = "1.9.0"
 ktlint                 = "0.43.2"
 ktlintGradle           = "11.0.0"
diff --git a/gradle_scripts/android-module-bootstrap.gradle b/gradle_scripts/android-module-bootstrap.gradle
index 93919145..c771441c 100644
--- a/gradle_scripts/android-module-bootstrap.gradle
+++ b/gradle_scripts/android-module-bootstrap.gradle
@@ -16,9 +16,8 @@ android {
     }
 
     compileOptions {
-        // Sets Java compatibility to Java 8
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
     }
 
     sourceSets {
diff --git a/gradle_scripts/code_quality.gradle b/gradle_scripts/code_quality.gradle
index 1b90102b..5c991fcf 100644
--- a/gradle_scripts/code_quality.gradle
+++ b/gradle_scripts/code_quality.gradle
@@ -29,7 +29,7 @@ if (isCodeQualityEnabled) {
                 config = files("${rootProject.projectDir}/detekt-config.yml")
             }
         }
-        tasks.detekt.jvmTarget = "1.8"
+        tasks.detekt.jvmTarget = "11"
     }
 
 }
diff --git a/ultrasonic/build.gradle b/ultrasonic/build.gradle
index 270d87c2..0dff501c 100644
--- a/ultrasonic/build.gradle
+++ b/ultrasonic/build.gradle
@@ -50,7 +50,7 @@ android {
     }
 
     kotlinOptions {
-        jvmTarget = "1.8"
+        jvmTarget = "11"
     }
 
     buildFeatures {
@@ -59,8 +59,8 @@ android {
     }
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
     }
 
     kapt {
diff --git a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/model/EditServerModel.kt b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/model/EditServerModel.kt
index 24a876df..c7e51723 100644
--- a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/model/EditServerModel.kt
+++ b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/model/EditServerModel.kt
@@ -119,13 +119,13 @@ class EditServerModel(val app: Application) : AndroidViewModel(app), KoinCompone
 
         // Execute a ping to retrieve the API version.
         // This is accepted to fail if the authentication is incorrect yet.
-        var pingResponse = client.api.pingSuspend()
+        val pingResponse = client.api.pingSuspend()
         val restApiVersion = pingResponse.version.restApiVersion
         serverSetting.minimumApiVersion = restApiVersion
         Timber.i("Server minimum API version set to %s", restApiVersion)
 
         // Execute a ping to check the authentication, now using the correct API version.
-        pingResponse = client.api.pingSuspend()
+        client.api.pingSuspend()
         return client
     }