diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f223ac3
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,7 @@
+SHELL := /bin/bash
+
+build:
+	./gradlew clean build
+
+test:
+	./gradlew test
diff --git a/build.gradle b/build.gradle
index d75ae2b..06ef10d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,17 +12,17 @@ repositories {
 }
 
 group = 'net.tokensmith'
-version = '1.3.4'
+version = '1.3.5-SNAPSHOT'
 description = 'Java implementation of JWT'
 
-sourceCompatibility = 12
-targetCompatibility = 12
+sourceCompatibility = 17
+targetCompatibility = 17
 
 ext {
-    jacksonVersion = '2.11.0'
-    log4jVersion = '2.13.3'
-    slf4jVersion = '1.7.25'
-    mockitoVersion = '2.28.2'
+    jacksonVersion = '2.13.1'
+    log4jVersion = '2.17.2'
+    slf4jVersion = '1.7.36'
+    mockitoVersion = '4.5.1'
 }
 
 dependencies {
@@ -30,15 +30,14 @@ dependencies {
     implementation "com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}"
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jdk8:${jacksonVersion}"
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:${jacksonVersion}"
-
-    compile group: 'org.slf4j', name: 'slf4j-api', version: "${slf4jVersion}"
+    implementation group: 'org.slf4j', name: 'slf4j-api', version: "${slf4jVersion}"
 
     testImplementation group: 'junit', name: 'junit', version:'4.12'
     testImplementation group: 'org.hamcrest', name: 'hamcrest-all', version:'1.3'
-    testCompile "org.mockito:mockito-core:${mockitoVersion}"
-    testCompile group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: "${log4jVersion}"
-    testCompile group: 'org.apache.logging.log4j', name: 'log4j-api', version: "${log4jVersion}"
-    testCompile group: 'org.apache.logging.log4j', name: 'log4j-core', version: "${log4jVersion}"
+    testImplementation "org.mockito:mockito-core:${mockitoVersion}"
+    testImplementation group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: "${log4jVersion}"
+    testImplementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: "${log4jVersion}"
+    testImplementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: "${log4jVersion}"
 }
 
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ae8df0d..c209bf3 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-all.zip
diff --git a/src/main/java/net/tokensmith/jwt/config/JwtAppFactory.java b/src/main/java/net/tokensmith/jwt/config/JwtAppFactory.java
index d2bce8d..21c36d8 100644
--- a/src/main/java/net/tokensmith/jwt/config/JwtAppFactory.java
+++ b/src/main/java/net/tokensmith/jwt/config/JwtAppFactory.java
@@ -3,7 +3,7 @@
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.PropertyNamingStrategy;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.datatype.jdk8.Jdk8Module;
 import net.tokensmith.jwt.entity.jwk.Key;
 import net.tokensmith.jwt.entity.jwk.RSAPublicKey;
@@ -62,7 +62,7 @@ public ObjectMapper objectMapper() {
         if (objectMapper == null) {
             this.objectMapper = new ObjectMapper()
                     .setPropertyNamingStrategy(
-                            PropertyNamingStrategy.SNAKE_CASE
+                            PropertyNamingStrategies.SNAKE_CASE
                     )
                     .configure(JsonParser.Feature.STRICT_DUPLICATE_DETECTION, true)
                     .registerModule(new Jdk8Module())