Index: trunk/tools/ivy.xml
===================================================================
--- trunk/tools/ivy.xml	(revision 18569)
+++ trunk/tools/ivy.xml	(revision 18587)
@@ -21,6 +21,6 @@
         <dependency org="com.guardsquare" name="proguard-ant" rev="7.2.2" conf="proguard->default"/>
         <!-- pmd->default -->
-        <dependency org="net.sourceforge.pmd" name="pmd-core" rev="6.50.0" conf="pmd->default"/>
-        <dependency org="net.sourceforge.pmd" name="pmd-java" rev="6.50.0" conf="pmd->default"/>
+        <dependency org="net.sourceforge.pmd" name="pmd-core" rev="6.51.0" conf="pmd->default"/>
+        <dependency org="net.sourceforge.pmd" name="pmd-java" rev="6.51.0" conf="pmd->default"/>
         <dependency org="net.sourceforge.saxon" name="saxon" rev="9.1.0.8" conf="pmd->default">
             <artifact name="saxon" type="jar"/>
@@ -28,6 +28,6 @@
         </dependency>
         <!-- spotbugs->default -->
-        <dependency org="com.github.spotbugs" name="spotbugs" rev="4.7.2" conf="spotbugs->default"/>
-        <dependency org="com.github.spotbugs" name="spotbugs-ant" rev="4.7.2" conf="spotbugs->default"/>
+        <dependency org="com.github.spotbugs" name="spotbugs" rev="4.7.3" conf="spotbugs->default"/>
+        <dependency org="com.github.spotbugs" name="spotbugs-ant" rev="4.7.3" conf="spotbugs->default"/>
         <!-- errorprone->default -->
         <dependency org="com.google.errorprone" name="error_prone_core" rev="2.10.0" conf="errorprone->default"/>