diff --git a/.classpath b/.classpath
index 7da16a871d..d773c80c77 100644
--- a/.classpath
+++ b/.classpath
@@ -41,7 +41,7 @@
 	<classpathentry kind="lib" path="lib/xmlunit-core-2.5.1.jar"/>
 	<classpathentry kind="lib" path="lib/objenesis-2.6.jar"/>
 	<classpathentry kind="lib" path="lib/commons-compress-1.20.jar"/>
-	<classpathentry kind="lib" path="lib/mockito-core-3.2.4.jar"/>
+	<classpathentry kind="lib" path="lib/mockito-core-3.3.3.jar"/>
 	<classpathentry kind="lib" path="lib/byte-buddy-1.10.1.jar"/>
 	<classpathentry kind="lib" path="lib/byte-buddy-agent-1.10.1.jar"/>
 	<classpathentry kind="lib" path="compile-lib/batik-all-1.12.jar"/>
diff --git a/build.gradle b/build.gradle
index 0c0bc5eda5..b8628215e3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -54,7 +54,7 @@ ant.taskdef(name: "junit",
         classpath: configurations.antLibs.asPath)
 
 wrapper {
-    gradleVersion = '6.1.1'
+    gradleVersion = '6.5'
 }
 
 task adjustWrapperPropertiesFile {
@@ -98,7 +98,7 @@ subprojects {
         commonsMathVersion = '3.6.1'
         japicmpversion = '4.1.2'
         junitVersion = '4.13'
-        mockitoVersion = '3.2.4'
+        mockitoVersion = '3.3.3'
         xmlbeansVersion = '3.1.0'
     }
 
@@ -188,9 +188,6 @@ project('main') {
         compile 'commons-logging:commons-logging:1.2'
         compile 'org.apache.commons:commons-collections4:4.4'
         compile "org.apache.commons:commons-math3:${commonsMathVersion}"
-        compile 'javax.xml.bind:jaxb-api:2.3.1'
-        compile 'com.sun.xml.bind:jaxb-impl:2.3.2'
-        compile 'com.sun.xml.bind:jaxb-core:2.3.0.1'
         compile 'javax.activation:activation:1.1.1'
         compile 'com.zaxxer:SparseBitSet:1.2'
 
diff --git a/build.xml b/build.xml
index b0a440a04f..010d24edc0 100644
--- a/build.xml
+++ b/build.xml
@@ -218,7 +218,7 @@ under the License.
     <dependency prefix="main.jmhAnnotation" artifact="org.openjdk.jmh:jmh-generator-annprocess:1.19" usage="main-tests"/>
     <dependency prefix="main.hamcrest" artifact="org.hamcrest:hamcrest-core:1.3" usage="main-tests"/>
     <dependency prefix="main.xmlunit" artifact="org.xmlunit:xmlunit-core:2.5.1" usage="main-tests"/>
-    <dependency prefix="main.mockito" artifact="org.mockito:mockito-core:3.2.4" usage="main-tests"/>
+    <dependency prefix="main.mockito" artifact="org.mockito:mockito-core:3.3.3" usage="main-tests"/>
     <dependency prefix="main.byte-buddy" artifact="net.bytebuddy:byte-buddy:1.10.1" usage="main-tests"/>
     <dependency prefix="main.byte-buddy-agent" artifact="net.bytebuddy:byte-buddy-agent:1.10.1" usage="main-tests"/>
     <dependency prefix="main.objenesis" artifact="org.objenesis:objenesis:2.6" usage="main-tests"/>
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 1b16c34a71..622ab64a3c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists