diff --git a/pom.xml b/pom.xml
index 0a4c07f..b5ff906 100644
--- a/pom.xml
+++ b/pom.xml
@@ -47,50 +47,50 @@
 		<dependency>
 			<groupId>org.projectlombok</groupId>
 			<artifactId>lombok</artifactId>
-			<version>${lombok.version}</version>
+			<version>1.18.20</version>
 			<scope>provided</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>graphql-spring-boot-starter</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 		</dependency>
 		<dependency> <!-- to embed GraphiQL tool.  See http://localhost:8080/graphiql -->
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>graphiql-spring-boot-starter</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency> <!-- See http://localhost:8080/altair -->
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>altair-spring-boot-starter</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency> <!-- See http://localhost:8080/playground -->
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>playground-spring-boot-starter</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency> <!-- See http://localhost:8080/voyager -->
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>voyager-spring-boot-starter</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 			<scope>runtime</scope>
 		</dependency>
 
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
-			<version>${h2.version}</version>
+			<version>1.4.200</version>
 			<scope>runtime</scope>
 		</dependency>
 		<dependency>
 			<groupId>com.github.gavlyukovskiy</groupId>
 			<artifactId>p6spy-spring-boot-starter</artifactId>
-			<version>1.7.0</version>
+			<version>1.11.0</version>
 		</dependency>
 
 		<dependency>
@@ -101,7 +101,7 @@
 		<dependency>
 			<groupId>com.graphql-java-kickstart</groupId>
 			<artifactId>graphql-spring-boot-starter-test</artifactId>
-			<version>${graphql.spring.starter.version}</version>
+			<version>11.1.0</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>