diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4d754ba3..3659b2b6f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## PyNWB 4.0.0 (Upcoming)
 
 ### Documentation and tutorial enhancements
+- Added `app.readthedocs.org/projects/pynwb/*` to `linkcheck_ignore` to stop the Sphinx linkcheck CI job from intermittently failing when GitHub Actions runners get throttled by readthedocs. @h-mayorquin [#2191](https://github.com/NeurodataWithoutBorders/pynwb/pull/2191)
 - Added documentation for `ExternalImage` to the images tutorial. @h-mayorquin [#2159](https://github.com/NeurodataWithoutBorders/pynwb/pull/2159)
 - Fixed broken and redirecting links in documentation. @bendichter [#2165](https://github.com/NeurodataWithoutBorders/pynwb/pull/2165)
 - Added `EventsTable` examples to the NWB file basics and behavior tutorials. @rly [#2156](https://github.com/NeurodataWithoutBorders/pynwb/pull/2156)
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 3ebc536ca..880e147b3 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -173,6 +173,7 @@ def __call__(self, filename):
 linkcheck_ignore = [
     r'https://training.incf.org/*',  # temporary ignore until SSL certificate issue is resolved
     r'https://scicrunch.org/*',  # scicrunch.org blocks automated requests with 403
+    r'https://app\.readthedocs\.org/projects/pynwb/.*',  # readthedocs blocks CI runner IPs (intermittent 403)
 ]
 
 suppress_warnings = ["config.cache"]