diff --git a/openvidu-java-client/pom.xml b/openvidu-java-client/pom.xml
index e0200b0b..e46b605d 100644
--- a/openvidu-java-client/pom.xml
+++ b/openvidu-java-client/pom.xml
@@ -68,28 +68,28 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
-			<version>${version.httpclient}</version>
+			<version>4.5.13</version>
 		</dependency>
 		<dependency>
 			<groupId>com.google.code.gson</groupId>
 			<artifactId>gson</artifactId>
-			<version>${version.gson}</version>
+			<version>2.8.6</version>
 		</dependency>
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
-			<version>${version.slf4j}</version>
+			<version>1.7.30</version>
 		</dependency>
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>${version.junit}</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>commons-validator</groupId>
 			<artifactId>commons-validator</artifactId>
-			<version>${version.commons-validator}</version>
+			<version>1.7</version>
 		</dependency>
 	</dependencies>