diff --git a/.gitignore b/.gitignore
index aba6df2..3bd096c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 .settings/
 target/
 bin/
+.idea 
diff --git a/pom.xml b/pom.xml
index 0882a30..061439b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,8 +20,8 @@
 		<main.basedir>${project.basedir}</main.basedir>
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
-		<log4j.version>2.14.1</log4j.version>
-		<slf4j.version>1.7.32</slf4j.version>
+		<log4j.version>2.19.0</log4j.version>
+		<slf4j.version>2.0.1</slf4j.version>
 		<nexus.repo>https://nexus.locusworks.net</nexus.repo>
 	</properties>
 
@@ -30,7 +30,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.0.0-M5</version>
+				<version>3.0.0-M7</version>
 				<configuration>
 					<forkMode>always</forkMode>
 				</configuration>
@@ -51,7 +51,7 @@
 			<plugin>
 				<groupId>org.owasp</groupId>
 				<artifactId>dependency-check-maven</artifactId>
-				<version>6.3.1</version>
+				<version>7.2.0</version>
 				<executions>
 					<execution>
 						<goals>
@@ -63,7 +63,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-enforcer-plugin</artifactId>
-				<version>3.0.0</version>
+				<version>3.1.0</version>
 				<executions>
 					<execution>
 						<id>enforce</id>
@@ -153,4 +153,4 @@
 		</pluginRepository>
 	</pluginRepositories>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/src/main/java/net/locusworks/logger/ApplicationLogger.java b/src/main/java/net/locusworks/logger/ApplicationLogger.java
index 5761eb7..5fcb119 100644
--- a/src/main/java/net/locusworks/logger/ApplicationLogger.java
+++ b/src/main/java/net/locusworks/logger/ApplicationLogger.java
@@ -17,7 +17,7 @@ public class ApplicationLogger implements org.slf4j.Logger {
 
   private static final Logger logger = LoggerFactory.getLogger(ApplicationLogger.class);
 
-  private String name;
+  private final String name;
 
   private LogLevel level;
 
@@ -471,7 +471,7 @@ public class ApplicationLogger implements org.slf4j.Logger {
   public void error(Map<String, String> values, String valueFormat, StringBuilder sb, Throwable e) {
     msgHelper(LogLevel.ERROR, values, valueFormat, sb);
     if (e != null) {
-      msgHelper(LogLevel.ERROR, "", e);
+      msgHelper("", e);
     }
   }
 
@@ -588,7 +588,7 @@ public class ApplicationLogger implements org.slf4j.Logger {
     values.entrySet()
       .stream()
       .map(entry ->  String.format(format, entry.getKey(), entry.getValue()))
-      .forEach(s -> builder.append(s));
+      .forEach(builder::append);
 
     log(level, builder.toString());
   }
@@ -605,9 +605,9 @@ public class ApplicationLogger implements org.slf4j.Logger {
 
   /**
    * helper method to format a message for logging
-   * @param level log level to use
+   * @param level   level to use
    * @param message message to log
-   * @param e any throwable to log
+   * @param e       any throwable to log
    */
   private void msgHelper(LogLevel level, String message, Throwable e) {
     String msg = e == null ? String.format("%n%s", message) : String.format("%n%s%n%s%n%s", message, e.getMessage(), getStackTrace(e));
@@ -622,4 +622,4 @@ public class ApplicationLogger implements org.slf4j.Logger {
   private String format(String message, LogLevel level) {
     return String.format("th%06d [%-5s] [%s] %s", Thread.currentThread().getId(), level, this.name, message);
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/net/locusworks/logger/ApplicationLoggerFactory.java b/src/main/java/net/locusworks/logger/ApplicationLoggerFactory.java
index 46b8929..d43d811 100644
--- a/src/main/java/net/locusworks/logger/ApplicationLoggerFactory.java
+++ b/src/main/java/net/locusworks/logger/ApplicationLoggerFactory.java
@@ -20,7 +20,7 @@ public class ApplicationLoggerFactory {
    * Need to get the log level from the properties file.
    * Would normally use the configuration service but would create a circular dependency as
    * the configuration service use the ApplicationLoggerFactory to create a logger
-   * @param initializer The initializer
+   * @param init The initializer
    */
   public static void init(ApplicationLoggerInitializer init) {
     initializer = init;
@@ -214,4 +214,4 @@ public class ApplicationLoggerFactory {
       this.level = level;
     }
   }
-}
\ No newline at end of file
+}