[build] org.mockito:mockito-core 3.3.3 -> 3.4.3.
diff --git a/pom.xml b/pom.xml
index 28904c9..d787acc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -100,7 +100,7 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>3.3.3</version>
+      <version>3.4.3</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index b845d30..d8f8c32 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -83,6 +83,7 @@
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">[build] checkstyle.version 8.27 -> 8.33.</action>
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">[build] org.apache.commons:commons-parent 48 -> 51.</action>
     <action                  type="update" dev="ggregory" due-to="Gary Gregory">[build] maven-pmd-plugin 3.12.0 -> 3.13.0.</action>
+    <action                  type="update" dev="ggregory" due-to="Gary Gregory">[build] org.mockito:mockito-core 3.3.3 -> 3.4.3.</action>    
   </release>
   
   <release version="1.8" date="2019-08-30" description="Release 1.8">