Index: trunk/tools/ivy.xml
===================================================================
--- trunk/tools/ivy.xml	(revision 19191)
+++ trunk/tools/ivy.xml	(revision 19208)
@@ -17,11 +17,11 @@
         <dependency org="net.java.dev.javacc" name="javacc" rev="7.0.13" conf="javacc->default"/>
         <!-- checkstyle->default -->
-        <dependency org="com.puppycrawl.tools" name="checkstyle" rev="10.17.0" conf="checkstyle->default"/>
+        <dependency org="com.puppycrawl.tools" name="checkstyle" rev="10.18.1" conf="checkstyle->default"/>
         <!-- proguard->default -->
         <dependency org="com.guardsquare" name="proguard-ant" rev="7.5.0" conf="proguard->default"/>
         <!-- pmd->default -->
-        <dependency org="net.sourceforge.pmd" name="pmd-core" rev="7.4.0" conf="pmd->default"/>
-        <dependency org="net.sourceforge.pmd" name="pmd-ant" rev="7.4.0" conf="pmd->default"/>
-        <dependency org="net.sourceforge.pmd" name="pmd-java" rev="7.4.0" conf="pmd->default"/>
+        <dependency org="net.sourceforge.pmd" name="pmd-core" rev="7.5.0" conf="pmd->default"/>
+        <dependency org="net.sourceforge.pmd" name="pmd-ant" rev="7.5.0" conf="pmd->default"/>
+        <dependency org="net.sourceforge.pmd" name="pmd-java" rev="7.5.0" conf="pmd->default"/>
         <dependency org="org.xmlresolver" name="xmlresolver" rev="6.0.4" conf="pmd->default"/>
         <!-- spotbugs->default -->
@@ -29,5 +29,5 @@
         <dependency org="com.github.spotbugs" name="spotbugs-ant" rev="4.8.6" conf="spotbugs->default"/>
         <!-- errorprone->default -->
-        <dependency org="com.google.errorprone" name="error_prone_core" rev="2.30.0" conf="errorprone->default"/>
+        <dependency org="com.google.errorprone" name="error_prone_core" rev="2.31.0" conf="errorprone->default"/>
         <!-- animal->default -->
         <dependency org="org.codehaus.mojo" name="animal-sniffer-ant-tasks" rev="1.24" conf="animal->default"/>