diff --git a/pom.xml b/pom.xml
index 4801f27f..7c33f9e5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -120,7 +120,7 @@
         <dependency>
             <groupId>com.github.davidmoten</groupId>
             <artifactId>grumpy-core</artifactId>
-            <version>0.4.5</version>
+            <version>0.4.7</version>
             <scope>test</scope>
         </dependency>