diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f1cdd5..44c01da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## [0.5.6] - TBA
+## [0.5.6] - 2021-12-18
 
 - improve Higher Logic, add Mailshake rules (thanks James M.)
 - improve Salesforce rule (thanks Steve H.)
diff --git a/Version.config b/Version.config
index defa93e..8b09101 100644
--- a/Version.config
+++ b/Version.config
@@ -1,7 +1,7 @@
 TOOL=MailTrackerBlocker_#MACOS_VERSION#
 MAJOR=0
 MINOR=5
-REVISION=5
+REVISION=6
 unset PRERELEASE
 
 VERSION="${MAJOR}.${MINOR}${REVISION:+.$REVISION}${PRERELEASE}"