<junit-vintage.version>5.3.1</junit-vintage.version>
     <junit-platform.version>1.3.1</junit-platform.version>
     <immutables.version>2.7.3</immutables.version>
-    <spring.version>5.1.4.RELEASE</spring.version>
-    <spring.boot.version>2.1.2.RELEASE</spring.boot.version>
+    <assertj-core.version>3.11.1</assertj-core.version>
     <reactor.bom.version>Californium-SR4</reactor.bom.version>
     <slf4j.version>1.7.25</slf4j.version>
     <logback.version>1.2.3</logback.version>
     <mockito.version>2.23.4</mockito.version>
     <protobuf.version>3.6.1</protobuf.version>
+    <vavr.version>0.10.0</vavr.version>
+    <jetbrains-annotations.version>16.0.3</jetbrains-annotations.version>
     <protoc-jar-maven-plugin.version>3.6.0.2</protoc-jar-maven-plugin.version>
     <maven-failsafe-plugin.version>2.22.1</maven-failsafe-plugin.version>
   </properties>
 
   <dependencyManagement>
     <dependencies>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-webflux</artifactId>
-        <version>${spring.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-web</artifactId>
-        <version>${spring.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-context</artifactId>
-        <version>${spring.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework</groupId>
-        <artifactId>spring-core</artifactId>
-        <version>${spring.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.boot</groupId>
-        <artifactId>spring-boot-starter-reactor-netty</artifactId>
-        <version>${spring.boot.version}</version>
-      </dependency>
-      <dependency>
-        <groupId>org.springframework.boot</groupId>
-        <artifactId>spring-boot-starter-web</artifactId>
-        <version>${spring.boot.version}</version>
-      </dependency>
       <dependency>
         <groupId>com.google.protobuf</groupId>
         <artifactId>protobuf-java</artifactId>
         <version>${protobuf.version}</version>
       </dependency>
-
       <dependency>
         <groupId>org.immutables</groupId>
         <artifactId>value</artifactId>
         <version>${immutables.version}</version>
       </dependency>
-      <dependency>
-        <groupId>io.vavr</groupId>
-        <artifactId>vavr</artifactId>
-        <version>0.10.0</version>
-      </dependency>
       <dependency>
         <groupId>org.immutables</groupId>
         <artifactId>gson</artifactId>
         <version>${immutables.version}</version>
       </dependency>
       <dependency>
-        <groupId>ch.qos.logback</groupId>
-        <artifactId>logback-classic</artifactId>
-        <version>${logback.version}</version>
-        <scope>runtime</scope>
+        <groupId>io.vavr</groupId>
+        <artifactId>vavr</artifactId>
+        <version>${vavr.version}</version>
       </dependency>
       <dependency>
         <groupId>org.slf4j</groupId>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
         <version>${slf4j.version}</version>
-        <scope>compile</scope>
+      </dependency>
+      <dependency>
+        <groupId>org.jetbrains</groupId>
+        <artifactId>annotations</artifactId>
+        <version>${jetbrains-annotations.version}</version>
       </dependency>
       <dependency>
         <groupId>io.projectreactor</groupId>
         <scope>import</scope>
       </dependency>
       <dependency>
-        <groupId>org.jetbrains</groupId>
-        <artifactId>annotations</artifactId>
-        <version>16.0.3</version>
+        <groupId>ch.qos.logback</groupId>
+        <artifactId>logback-classic</artifactId>
+        <version>${logback.version}</version>
+        <scope>runtime</scope>
       </dependency>
+
       <dependency>
         <groupId>org.mockito</groupId>
         <artifactId>mockito-core</artifactId>
       <dependency>
         <groupId>org.assertj</groupId>
         <artifactId>assertj-core</artifactId>
-        <version>3.11.1</version>
+        <version>${assertj-core.version}</version>
         <scope>test</scope>
       </dependency>
     </dependencies>