diff --git a/pom.xml b/pom.xml
index 570e8fe..60daa3e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -87,7 +87,7 @@
                     <dependency>
                         <groupId>org.junit.jupiter</groupId>
                         <artifactId>junit-jupiter-engine</artifactId>
-                        <version>${junit-version}</version>
+                        <version>5.10.2</version>
                     </dependency>
                 </dependencies>
             </plugin>
@@ -350,22 +350,22 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>okhttp</artifactId>
-            <version>${okhttp-version}</version>
+            <version>4.12.0</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>logging-interceptor</artifactId>
-            <version>${okhttp-version}</version>
+            <version>4.12.0</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>${gson-version}</version>
+            <version>2.10.1</version>
         </dependency>
         <dependency>
             <groupId>io.gsonfire</groupId>
             <artifactId>gson-fire</artifactId>
-            <version>${gson-fire-version}</version>
+            <version>1.9.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.oltu.oauth2</groupId>
@@ -375,40 +375,40 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
-            <version>${commons-lang3-version}</version>
+            <version>3.14.0</version>
         </dependency>
         <dependency>
             <groupId>jakarta.annotation</groupId>
             <artifactId>jakarta.annotation-api</artifactId>
-            <version>${jakarta-annotation-version}</version>
+            <version>1.3.5</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>org.openapitools</groupId>
             <artifactId>jackson-databind-nullable</artifactId>
-            <version>${jackson-databind-nullable-version}</version>
+            <version>0.2.6</version>
         </dependency>
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
-            <version>${jsr311-api-version}</version>
+            <version>1.1.1</version>
         </dependency>
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>javax.ws.rs-api</artifactId>
-            <version>${javax.ws.rs-api-version}</version>
+            <version>2.1.1</version>
         </dependency>
         <!-- test dependencies -->
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>${junit-version}</version>
+            <version>5.10.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-runner</artifactId>
-            <version>${junit-platform-runner.version}</version>
+            <version>1.10.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>