diff --git a/doc/specs/implemented/make_paste_ini_config_optional.rst b/doc/specs/implemented/make_paste_ini_config_optional.rst
index a797924..1d091d3 100644
--- a/doc/specs/implemented/make_paste_ini_config_optional.rst
+++ b/doc/specs/implemented/make_paste_ini_config_optional.rst
@@ -10,7 +10,7 @@
  https://blueprints.launchpad.net/heat/+spec/awesome-thing should be named
  awesome-thing.rst .  Please do not delete any of the sections in this
  template.  If you have nothing to say for a whole section, just write: None
- For help with syntax, see http://sphinx-doc.org/rest.html
+ For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
  To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
 
 ======================================
diff --git a/doc/specs/implemented/multi_backend_support.rst b/doc/specs/implemented/multi_backend_support.rst
index 1d4a6d0..bd96298 100644
--- a/doc/specs/implemented/multi_backend_support.rst
+++ b/doc/specs/implemented/multi_backend_support.rst
@@ -10,7 +10,7 @@
  https://blueprints.launchpad.net/heat/+spec/awesome-thing should be named
  awesome-thing.rst .  Please do not delete any of the sections in this
  template.  If you have nothing to say for a whole section, just write: None
- For help with syntax, see http://sphinx-doc.org/rest.html
+ For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
  To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
 
 =====================
diff --git a/doc/specs/in-progress/better_devstack_integration.rst b/doc/specs/in-progress/better_devstack_integration.rst
index b4624f2..22d6a83 100644
--- a/doc/specs/in-progress/better_devstack_integration.rst
+++ b/doc/specs/in-progress/better_devstack_integration.rst
@@ -10,7 +10,7 @@
  https://blueprints.launchpad.net/heat/+spec/awesome-thing should be named
  awesome-thing.rst .  Please do not delete any of the sections in this
  template.  If you have nothing to say for a whole section, just write: None
- For help with syntax, see http://sphinx-doc.org/rest.html
+ For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
  To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
 
 ============================
diff --git a/doc/specs/in-progress/integration_testing.rst b/doc/specs/in-progress/integration_testing.rst
index d3a23d0..f48e153 100644
--- a/doc/specs/in-progress/integration_testing.rst
+++ b/doc/specs/in-progress/integration_testing.rst
@@ -10,7 +10,7 @@
  https://blueprints.launchpad.net/heat/+spec/awesome-thing should be named
  awesome-thing.rst .  Please do not delete any of the sections in this
  template.  If you have nothing to say for a whole section, just write: None
- For help with syntax, see http://sphinx-doc.org/rest.html
+ For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
  To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
 
 ===================
diff --git a/doc/specs/template.rst b/doc/specs/template.rst
index a202654..9bb293e 100644
--- a/doc/specs/template.rst
+++ b/doc/specs/template.rst
@@ -10,7 +10,7 @@
  https://blueprints.launchpad.net/heat/+spec/awesome-thing should be named
  awesome-thing.rst .  Please do not delete any of the sections in this
  template.  If you have nothing to say for a whole section, just write: None
- For help with syntax, see http://sphinx-doc.org/rest.html
+ For help with syntax, see http://www.sphinx-doc.org/en/stable/rest.html
  To test out your formatting, see http://www.tele3.cz/jbar/rest/rest.html
 
 =======================