diff --git a/pom.xml b/pom.xml
index f203b73..ee7558e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,42 +28,42 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>${junit.version}</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>${lombok.version}</version>
+            <version>1.18.8</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-test</artifactId>
-            <version>${spring.version}</version>
+            <version>4.3.20.RELEASE</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
+            <version>1.3.15</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>${commons-lang3.version}</version>
+            <version>3.9</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>${guava.version}</version>
+            <version>33.4.8-jre</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>${commons-io.version}</version>
+            <version>2.14.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>