diff --git a/doc/requirements.txt b/doc/requirements.txt
index b3abbc3..71c0d0d 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -6,5 +6,4 @@
 sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinxmark>=0.1.14 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index daff802..a1b23bf 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -23,7 +23,6 @@
 # serve to show the default.
 
 import pbr.version
-import os
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -41,7 +40,6 @@ import os
 extensions = [
     'openstackdocstheme',
     'sphinx.ext.autodoc',
-    'sphinxmark'
 ]
 
 # Add any paths that contain templates here, relative to this directory.
@@ -312,17 +310,3 @@ texinfo_documents = [
 
 # If true, do not generate a @detailmenu in the "Top" node's menu.
 # texinfo_no_detailmenu = False
-
-
-watermark = os.popen("git branch --contains $(git rev-parse HEAD)\
-| awk -F/ '/stable/ {print $2}'").read().strip(' \n\t').capitalize()
-if watermark == "":
-    watermark = "Pre-release"
-
-# -- Options for sphinxmark -----------------------------------------------
-sphinxmark_enable = True
-sphinxmark_div = 'docs-body'
-sphinxmark_image = 'text'
-sphinxmark_text = watermark
-sphinxmark_text_color = (128, 128, 128)
-sphinxmark_text_size = 70