diff --git a/pom.xml b/pom.xml
index 6d54bd1..50e5b5b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -254,25 +254,25 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <version>${lombok.version}</version>
+            <version>1.18.30</version>
             <scope>provided</scope>
         </dependency>
 
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>${slf4j.version}</version>
+            <version>1.7.36</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>${logback.version}</version>
+            <version>1.3.15</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>${logback.version}</version>
+            <version>1.3.15</version>
             <scope>provided</scope>
         </dependency>
 
@@ -280,13 +280,13 @@
         <dependency>
             <groupId>org.usb4java</groupId>
             <artifactId>usb4java-javax</artifactId>
-            <version>${usb4java.version}</version>
+            <version>1.3.0</version>
         </dependency>
 
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>${junit.jupiter.version}</version>
+            <version>5.9.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>