diff --git a/examples/gaussian_processes/GP-MeansAndCovs.ipynb b/examples/gaussian_processes/GP-MeansAndCovs.ipynb
index 1e6240bd2..a92470287 100644
--- a/examples/gaussian_processes/GP-MeansAndCovs.ipynb
+++ b/examples/gaussian_processes/GP-MeansAndCovs.ipynb
@@ -2357,7 +2357,7 @@
     "## Authors\n",
     "* Authored by Bill Engels\n",
     "* Updated to v4 by Oriol Abril Pla in Nov 2022 ([pymc-examples#301](https://github.com/pymc-devs/pymc-examples/pull/301))\n",
-    "* Updated to v5 by Juan Orduz in Nov 2023"
+    "* Updated to v5 by Juan Orduz in Nov 2023 ([pymc-examples#593](https://github.com/pymc-devs/pymc-examples/pull/593))"
    ]
   },
   {
diff --git a/examples/gaussian_processes/GP-MeansAndCovs.myst.md b/examples/gaussian_processes/GP-MeansAndCovs.myst.md
index ceceef7dd..397af346e 100644
--- a/examples/gaussian_processes/GP-MeansAndCovs.myst.md
+++ b/examples/gaussian_processes/GP-MeansAndCovs.myst.md
@@ -1201,7 +1201,7 @@ If we have forgotten an important covariance or mean function, please feel free
 ## Authors
 * Authored by Bill Engels
 * Updated to v4 by Oriol Abril Pla in Nov 2022 ([pymc-examples#301](https://github.com/pymc-devs/pymc-examples/pull/301))
-* Updated to v5 by Juan Orduz in Nov 2023
+* Updated to v5 by Juan Orduz in Nov 2023 ([pymc-examples#593](https://github.com/pymc-devs/pymc-examples/pull/593))
 
 +++