diff --git a/.circleci/config.yml b/.circleci/config.yml
index 69cfca52..61e16782 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -7,7 +7,7 @@ jobs:
   build:
     docker:
       # specify the version you desire here
-      - image: circleci/openjdk:8-jdk
+      - image: cimg/openjdk:8.0
 
     working_directory: ~/repo
 
diff --git a/pom.xml b/pom.xml
index 566df612..8cf28213 100644
--- a/pom.xml
+++ b/pom.xml
@@ -45,8 +45,8 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <jdkVersion>1.7</jdkVersion>
-        <targetJdk>1.7</targetJdk>
+        <jdkVersion>1.8</jdkVersion>
+        <targetJdk>1.8</targetJdk>
         <jacoco.version>0.8.3</jacoco.version>
     </properties>
 
@@ -89,7 +89,7 @@
         <dependency>
             <groupId>org.openapitools</groupId>
             <artifactId>jackson-databind-nullable</artifactId>
-            <version>0.2.1</version>
+            <version>0.2.6</version>
         </dependency>
         <dependency>
             <groupId>javax.annotation</groupId>
@@ -99,12 +99,12 @@
         <dependency>
             <groupId>org.threeten</groupId>
             <artifactId>threetenbp</artifactId>
-            <version>1.4.3</version>
+            <version>1.6.5</version>
         </dependency>
         <dependency>
             <groupId>io.swagger</groupId>
             <artifactId>swagger-annotations</artifactId>
-            <version>1.5.24</version>
+            <version>1.6.8</version>
         </dependency>
         <dependency>
             <groupId>javax.servlet</groupId>
@@ -115,22 +115,22 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>okhttp</artifactId>
-            <version>4.9.3</version>
+            <version>4.10.0</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>logging-interceptor</artifactId>
-            <version>4.9.3</version>
+            <version>4.10.0</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.36</version>
+            <version>2.0.5</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.11</version>
+            <version>1.3.7</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -152,31 +152,31 @@
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>4.3.1</version>
+            <version>4.11.0</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.22.0</version>
+            <version>3.24.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-web</artifactId>
-            <version>5.3.17</version>
+            <version>5.3.27</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-            <version>5.3.17</version>
+            <version>5.3.27</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.skyscreamer</groupId>
             <artifactId>jsonassert</artifactId>
-            <version>1.5.0</version>
+            <version>1.5.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -188,7 +188,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>mockwebserver</artifactId>
-            <version>4.9.3</version>
+            <version>4.10.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -207,8 +207,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.0</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <optimize>true</optimize>
                     <debug>true</debug>
                 </configuration>