diff --git a/pom.xml b/pom.xml
index 5514474..8520d30 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,28 +18,28 @@
         <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.squareup.retrofit2</groupId>
             <artifactId>converter-scalars</artifactId>
-            <version>${converter-scalars.version}</version>
+            <version>3.0.0</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.retrofit2</groupId>
             <artifactId>retrofit</artifactId>
-            <version>${com.squareup.retrofit2.version}</version>
+            <version>3.0.0</version>
         </dependency>
 
         <dependency>
             <groupId>com.squareup.retrofit2</groupId>
             <artifactId>converter-jackson</artifactId>
-            <version>${com.squareup.retrofit2.version}</version>
+            <version>3.0.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
@@ -49,7 +49,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>