diff --git a/core/build.gradle b/core/build.gradle
index 948d9b40f..f76d89289 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -37,8 +37,6 @@ if (GradleVersion.current().compareTo(gradleVersionTargetJVM) > 0) {
     }
 }
 
-sourceCompatibility = 8
-targetCompatibility = 8
 tasks.withType(JavaCompile) {
     options.compilerArgs.addAll(['--release', '8'])
     options.compilerArgs << '-Xlint:deprecation'
diff --git a/examples-kotlin/build.gradle b/examples-kotlin/build.gradle
index 9e4d74947..84a90c61b 100644
--- a/examples-kotlin/build.gradle
+++ b/examples-kotlin/build.gradle
@@ -11,7 +11,6 @@ compileKotlin {
     }
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
     options.release = 17
diff --git a/examples/build.gradle b/examples/build.gradle
index 1d0f47e8b..6f444972f 100644
--- a/examples/build.gradle
+++ b/examples/build.gradle
@@ -8,7 +8,6 @@ dependencies {
     implementation 'org.slf4j:slf4j-jdk14:2.0.13'
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
     options.compilerArgs.addAll(['--release', '17'])
diff --git a/integration-test/build.gradle b/integration-test/build.gradle
index bf271f498..9bc47168e 100644
--- a/integration-test/build.gradle
+++ b/integration-test/build.gradle
@@ -18,7 +18,6 @@ dependencies {
     testRuntimeOnly "org.junit.vintage:junit-vintage-engine:5.10.3"
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
     options.release = 17
diff --git a/tools/build.gradle b/tools/build.gradle
index c5638f479..22ef32235 100644
--- a/tools/build.gradle
+++ b/tools/build.gradle
@@ -8,7 +8,6 @@ dependencies {
     implementation 'org.slf4j:slf4j-jdk14:2.0.13'
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.compilerArgs.addAll(['--release', '17'])
     options.compilerArgs << '-Xlint:deprecation'
diff --git a/wallettemplate/build.gradle b/wallettemplate/build.gradle
index c44f50906..7327f547a 100644
--- a/wallettemplate/build.gradle
+++ b/wallettemplate/build.gradle
@@ -20,7 +20,6 @@ javafx {
     modules = [ 'javafx.controls', 'javafx.fxml' ]
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.encoding = 'UTF-8'
     options.release = 17
diff --git a/wallettool/build.gradle b/wallettool/build.gradle
index d87028d7c..d9ac022d4 100644
--- a/wallettool/build.gradle
+++ b/wallettool/build.gradle
@@ -31,7 +31,6 @@ dependencies {
     testImplementation 'org.slf4j:slf4j-jdk14:2.0.13'
 }
 
-sourceCompatibility = 17
 tasks.withType(JavaCompile) {
     options.compilerArgs.addAll(['--release', '17'])
     options.compilerArgs << '-Xlint:deprecation'