diff --git a/docs/conf.py b/docs/conf.py
index a337b1e..9f0b8c6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -82,8 +82,8 @@ def __getattr__(cls, name):
 }
 # allows us to easily link PRs and issues in the change log
 extlinks = {
-    "issue": ("https://github.com/NCAR/geocat-viz/issues/%s", "GH"),
-    "pr": ("https://github.com/NCAR/geocat-viz/pull/%s", "PR"),
+    "issue": ("https://github.com/NCAR/geocat-viz/issues/%s", "GH%s"),
+    "pr": ("https://github.com/NCAR/geocat-viz/pull/%s", "PR%s"),
 }
 
 # napoleon settings
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 13e575d..582b0b3 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -16,6 +16,7 @@ Documentation
 Bug Fixes
 ^^^^^^^^^
 * Remove matplotlib version pin by `Katelyn FitzGerald`_ in (:pr:`177`)
+* Fix `extlinks` for compatibility with Sphinx 6 by `Katelyn FitzGerald`_ in (:pr:`180`)
 
 v2023.10.0 (October 3, 2023)
 ----------------------------