diff --git a/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonDescriptionAsTitleExample.java b/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonDescriptionAsTitleExample.java
index dcb6faf3..32104a8f 100644
--- a/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonDescriptionAsTitleExample.java
+++ b/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonDescriptionAsTitleExample.java
@@ -12,7 +12,6 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *
  */
 
 package com.github.victools.jsonschema.examples;
diff --git a/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonSubtypeDefinitionExample.java b/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonSubtypeDefinitionExample.java
index d8e84e74..bc3dd33d 100644
--- a/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonSubtypeDefinitionExample.java
+++ b/jsonschema-examples/src/main/java/com/github/victools/jsonschema/examples/JacksonSubtypeDefinitionExample.java
@@ -12,7 +12,6 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
- *
  */
 
 package com.github.victools.jsonschema.examples;
diff --git a/jsonschema-maven-plugin/pom.xml b/jsonschema-maven-plugin/pom.xml
index 6b6841e0..408d211f 100644
--- a/jsonschema-maven-plugin/pom.xml
+++ b/jsonschema-maven-plugin/pom.xml
@@ -20,9 +20,10 @@
     </prerequisites>
 
     <properties>
-        <maven.core.version>3.8.1</maven.core.version>
+        <maven.core.version>3.9.9</maven.core.version>
         <maven.testing.version>3.3.0</maven.testing.version>
-        <maven.tools.version>3.6.0</maven.tools.version>
+        <maven.tools.version>3.15.0</maven.tools.version>
+        <commons.io.version>2.17.0</commons.io.version>
     </properties>
 
     <dependencies>
@@ -61,7 +62,20 @@
             <artifactId>maven-plugin-testing-harness</artifactId>
             <version>${maven.testing.version}</version>
             <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>commons-io</groupId>
+                    <artifactId>commons-io</artifactId>
+                </exclusion>
+            </exclusions>
         </dependency>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>${commons.io.version}</version>
+            <scope>test</scope>
+        </dependency>
+
         <dependency>
             <groupId>com.github.victools</groupId>
             <artifactId>jsonschema-generator</artifactId>
diff --git a/jsonschema-maven-plugin/src/test/java/com/github/victools/jsonschema/plugin/maven/SchemaGeneratorMojoTest.java b/jsonschema-maven-plugin/src/test/java/com/github/victools/jsonschema/plugin/maven/SchemaGeneratorMojoTest.java
index 0f5ab366..010ea79c 100644
--- a/jsonschema-maven-plugin/src/test/java/com/github/victools/jsonschema/plugin/maven/SchemaGeneratorMojoTest.java
+++ b/jsonschema-maven-plugin/src/test/java/com/github/victools/jsonschema/plugin/maven/SchemaGeneratorMojoTest.java
@@ -77,10 +77,10 @@ public void testGeneration(String testCaseName) throws Exception {
         Assertions.assertTrue(FileUtils.contentEqualsIgnoreEOL(resultFile, referenceFile, CHARSET_NAME),
                 "Generated schema for " + testCaseName + " is not equal to the expected reference.\n"
                         + "Generated:\n"
-                        + FileUtils.readFileToString(resultFile)
+                        + FileUtils.readFileToString(resultFile, CHARSET_NAME)
                         + "\n----------\n"
                         + "Expected:\n"
-                        + FileUtils.readFileToString(referenceFile));
+                        + FileUtils.readFileToString(referenceFile, CHARSET_NAME));
     }
 
     /**