diff --git a/pom.xml b/pom.xml
index a6f0fa5..6730bc4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -116,6 +116,12 @@
                 <version>2.1.3</version>
             </dependency>
 
+            <dependency>
+                <groupId>com.google.guava</groupId>
+                <artifactId>guava</artifactId>
+                <version>25.0-jre</version>
+            </dependency>
+
             <dependency>
                 <groupId>com.google.code.findbugs</groupId>
                 <artifactId>jsr305</artifactId>
@@ -146,6 +152,25 @@
                 <version>3.8.1</version>
             </dependency>
 
+            <!--
+
+Dependency convergence error for org.apache.httpcomponents.client5:httpclient5:5.0.3 paths to dependency are:
++-walkingkooka:j2cl-maven-plugin:1.0-SNAPSHOT
+  +-io.github.bonigarcia:webdrivermanager:5.5.2
+    +-com.github.docker-java:docker-java-transport-httpclient5:3.3.3
+      +-org.apache.httpcomponents.client5:httpclient5:5.0.3
+and
++-walkingkooka:j2cl-maven-plugin:1.0-SNAPSHOT
+  +-io.github.bonigarcia:webdrivermanager:5.5.2
+    +-org.apache.httpcomponents.client5:httpclient5:5.2.1
+]
+            -->
+            <dependency>
+                <groupId>org.apache.httpcomponents.client5</groupId>
+                <artifactId>httpclient5</artifactId>
+                <version>5.2.1</version>
+            </dependency>
+
             <dependency>
                 <groupId>org.apache.maven</groupId>
                 <artifactId>maven-artifact</artifactId>
@@ -371,7 +396,7 @@
         <dependency>
             <groupId>io.github.bonigarcia</groupId>
             <artifactId>webdrivermanager</artifactId>
-            <version>4.0.0</version>
+            <version>5.5.3</version>
         </dependency>
 
         <dependency>