diff --git a/docsrc/conf.py b/docsrc/conf.py
index 11d8e3e2ee..78f8c5e65a 100644
--- a/docsrc/conf.py
+++ b/docsrc/conf.py
@@ -98,9 +98,9 @@
 # May need to also update toplevel index.rst to point to other versions.
 #
 # The short X.Y version.
-version = '3.6.5'
+version = '3.6.6'
 # The full version, including alpha/beta/rc tags.
-release = '3.6.5'
+release = '3.6.6'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -429,9 +429,9 @@
 # When this is updated, you may also need to update the version and release
 # definitions listed above to stay up to date.
 rst_prolog = """
-.. |imap_last_stable_version| replace:: 3.6.5
+.. |imap_last_stable_version| replace:: 3.6.6
 .. |imap_last_stable_branch| replace:: `cyrus-imapd-3.6`
-.. |imap_current_stable_version| replace:: 3.8.3
+.. |imap_current_stable_version| replace:: 3.8.4
 .. |imap_current_stable_branch| replace:: `cyrus-imapd-3.8`
 .. |imap_latest_development_version| replace:: 3.9.0-alpha0
 .. |imap_latest_development_branch| replace:: master
@@ -446,7 +446,7 @@
 .. |sasl_current_stable_version| replace:: 2.1.28
 .. |imap_stable_release_notes| raw:: html
 
-    <a href="3.8/x/3.8.3.html">3.8.3</a>
+    <a href="3.8/x/3.8.4.html">3.8.4</a>
 
 .. |imap_development_release_notes| raw:: html