diff --git a/lib/pom.xml b/lib/pom.xml
index 07ef09b..bae6e67 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -77,6 +77,12 @@
                 <version>1.3</version>
                 <scope>test</scope>
             </dependency>
+            <dependency>
+                <groupId>com.spotify</groupId>
+                <artifactId>hamcrest-optional</artifactId>
+                <version>1.1.0</version>
+                <scope>test</scope>
+            </dependency>
 
             <dependency>
                 <groupId>org.slf4j</groupId>
@@ -650,6 +656,12 @@
         </dependency>
 
         <dependency>
+            <groupId>com.spotify</groupId>
+            <artifactId>hamcrest-optional</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava-testlib</artifactId>
             <scope>test</scope>