diff --git a/build.sbt b/build.sbt
index 4360136..16f5d05 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,4 @@
-lazy val cf2rdfVersion = setVersion("0.5.0")
+lazy val cf2rdfVersion = setVersion("0.6.0")
 val scalaV             = "2.12.2"
 val cfgV               = "0.0.7"
 val scalajHttpV        = "2.3.0"
diff --git a/changelog.md b/changelog.md
index e150573..8fb50da 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,7 @@
+2017-09-08 0.6.0
+
+- watchdog adjustments
+
 2017-09-07 0.5.0
 
 - add watchdog option, suitable to be used in a cronjob.
diff --git a/src/main/resources/reference.conf b/src/main/resources/reference.conf
index c747a71..0da4169 100644
--- a/src/main/resources/reference.conf
+++ b/src/main/resources/reference.conf
@@ -1 +1 @@
-cf2rdf.version = 0.5.0
\ No newline at end of file
+cf2rdf.version = 0.6.0
\ No newline at end of file
diff --git a/src/main/scala/org/mmisw/cf2rdf/cf2rdf.scala b/src/main/scala/org/mmisw/cf2rdf/cf2rdf.scala
index 88ef8c0..89c9adc 100644
--- a/src/main/scala/org/mmisw/cf2rdf/cf2rdf.scala
+++ b/src/main/scala/org/mmisw/cf2rdf/cf2rdf.scala
@@ -21,7 +21,7 @@ object cf2rdf {
       val givenStepNames = collection.mutable.SortedSet[String]()
       args foreach { stepName ⇒
         if (!steps.contains(stepName)) {
-          println(s"invalid step $stepName.  Valid steps: ${stepNameOrder.mkString(", ")}")
+          System.err.println(s"invalid step $stepName.  Valid steps: ${stepNameOrder.mkString(", ")}")
           sys.exit(1)
         }
         givenStepNames += stepName
@@ -31,7 +31,7 @@ object cf2rdf {
         stepNameOrder.filter(givenStepNames.contains) foreach { steps(_)() }
       }
       else {
-        println(s"""
+        System.err.println(s"""
                |Usage:
                |   cf2rdf generate-conf [--overwrite]
                |   cf2rdf watchdog
@@ -45,7 +45,7 @@ object cf2rdf {
     val filename = "cf2rdf.conf"
     val file = new File(filename)
     if (file.exists() && !args.contains("--overwrite")) {
-      println(s"$file exists.  Use --overwrite to overwrite")
+      System.err.println(s"$file exists.  Use --overwrite to overwrite")
       sys.exit(1)
     }
     val conf = scala.io.Source.fromInputStream(