diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 29d6a9df..22f2cec7 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -90,6 +90,7 @@ Then, to run the tests locally:
 
 1. `npm install`
 2. `npm run test-qiskit` or `npm run test-ecosystem`, depending on which theme you want.
+   * Warning: the very first time you run the tests, they will fail because the `snapshot-results` folder will not yet exist. Try running again.
 
 The docs will rebuild every time you run `npm run test-qiskit` and `npm run test-ecosystem`.
 
diff --git a/src/qiskit_sphinx_theme/assets/styles/_sphinx-extensions.scss b/src/qiskit_sphinx_theme/assets/styles/_sphinx-extensions.scss
index 5446e0fa..3603aa26 100644
--- a/src/qiskit_sphinx_theme/assets/styles/_sphinx-extensions.scss
+++ b/src/qiskit_sphinx_theme/assets/styles/_sphinx-extensions.scss
@@ -20,7 +20,7 @@
 // We keep the default style of the text itself being purple to be consistent with the general style
 // of the site using purple for links.
 .nbsphinx-gallery > a.reference {
-  border: 1px dotted var(--color-foreground-secondary);
+  border: 1px solid var(--color-foreground-secondary);
 }
 
 // ---------------------------------------------------------------------------
diff --git a/tests/js/qiskit.test.js-snapshots/tutorials-do-not-have-purple-border-1-linux.png b/tests/js/qiskit.test.js-snapshots/tutorials-do-not-have-purple-border-1-linux.png
index 3cdf975d..77c58678 100644
Binary files a/tests/js/qiskit.test.js-snapshots/tutorials-do-not-have-purple-border-1-linux.png and b/tests/js/qiskit.test.js-snapshots/tutorials-do-not-have-purple-border-1-linux.png differ