Update to commons.threads 3.2.20
diff --git a/src/main/provisioning/sling.txt b/src/main/provisioning/sling.txt
index 6a4ed57..98a5233 100644
--- a/src/main/provisioning/sling.txt
+++ b/src/main/provisioning/sling.txt
@@ -101,7 +101,7 @@
     org.apache.sling/org.apache.sling.commons.mime/2.2.2
     org.apache.sling/org.apache.sling.commons.osgi/2.4.0
     org.apache.sling/org.apache.sling.commons.scheduler/2.7.4
-    org.apache.sling/org.apache.sling.commons.threads/3.2.18
+    org.apache.sling/org.apache.sling.commons.threads/3.2.20
     org.apache.sling/org.apache.sling.engine/2.6.20
     org.apache.sling/org.apache.sling.fsresource/2.1.16
     org.apache.sling/org.apache.sling.i18n/2.5.14