diff --git a/.github/workflows/link_check.yaml b/.github/workflows/link_check.yaml
index a7166e055e..4b2b652bda 100644
--- a/.github/workflows/link_check.yaml
+++ b/.github/workflows/link_check.yaml
@@ -66,7 +66,12 @@ jobs:
 
       - name: Check links
         id: lychee
-        uses: lycheeverse/lychee-action@8646ba30535128ac92d33dfc9133794bfdd9b411
+        # Must postdate lychee-action#330 (auto-detect lychee bin in a subfolder,
+        # 2026-04-24): the previously pinned SHA predated that fix, so its
+        # installer assumed the v0.24.2 release tarball extracts flat. It doesn't,
+        # so every run since this workflow was added crashed before checking a
+        # single link. See DOC-7045.
+        uses: lycheeverse/lychee-action@649b0e4890508ea3e11ea6b3ee35ce899a25afd5
         with:
           # Pin the lychee binary: the action's own default lags, and the
           # host_concurrency / host_request_interval keys in .lychee.toml need >= 0.24.
diff --git a/content/develop/data-types/probabilistic/count-min-sketch.md b/content/develop/data-types/probabilistic/count-min-sketch.md
index 58e51a10d7..63a3adc1b2 100644
--- a/content/develop/data-types/probabilistic/count-min-sketch.md
+++ b/content/develop/data-types/probabilistic/count-min-sketch.md
@@ -121,7 +121,7 @@ Adding, updating and querying for elements in a CMS has a time complexity O(1).
 
 
 ## Academic sources
-- [An Improved Data Stream Summary: The Count-Min Sketch and its Applications](http://dimacs.rutgers.edu/~graham/pubs/papers/cm-full.pdf)
+- [An Improved Data Stream Summary: The Count-Min Sketch and its Applications](https://doi.org/10.1016/j.jalgor.2003.12.001)
 
 ## References
 - [Count-Min Sketch: The Art and Science of Estimating Stuff](https://redis.com/blog/count-min-sketch-the-art-and-science-of-estimating-stuff/)