diff --git a/.release b/.release
index f979421c6a2aea8e48d5cf01c995fa8598a67650..c1c4389eb647922640cfdff017dba2f11f3f4857 100644
--- a/.release
+++ b/.release
@@ -1,2 +1,2 @@
-release=0.6.5
-tag=lmcbaseclasses-0.6.5
+release=0.6.6
+tag=lmcbaseclasses-0.6.6
diff --git a/README.md b/README.md
index 8d7a79a62e680bf2684f80a25ea521b8576e42df..2311a8bd88e19fad7b7cd0418a1b302814e554e9 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,9 @@ The lmc-base-classe repository contains set of eight classes as mentioned in SKA
 
 ## Version History
 
+#### 0.6.6
+- Documentation bugfix
+
 #### 0.6.5
 - Fix to observation state machine: allow Abort() from RESETTING observation
   state
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 8f783fcff6a8ea4bc36e3c7bb11aba56072147ab..d3b339992994f6cbd5c8810777ab41136f5e404d 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -27,7 +27,8 @@
 # sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
 
 autodoc_mock_imports = ['PyTango', 'tango', 'tango.server', 'run', 'command',
-                        'future', 'future.utils', 'ska.logging', 'ska.logging.configuration']
+                        'future', 'future.utils', 'transitions',
+                        'ska.logging', 'ska.logging.configuration']
 
 import sys
 import os
diff --git a/src/ska/base/release.py b/src/ska/base/release.py
index e62b34d25817a862a36c455b2f7bfc74e4d39952..894fa0ecafcc8232914a3baad0729f799e6aa572 100644
--- a/src/ska/base/release.py
+++ b/src/ska/base/release.py
@@ -7,7 +7,7 @@
 """Release information for lmc-base-classes Python Package"""
 
 name = """lmcbaseclasses"""
-version = "0.6.5"
+version = "0.6.6"
 version_info = version.split(".")
 description = """A set of generic base devices for SKA Telescope."""
 author = "SKA India and SARAO and CSIRO"