diff --git a/src/components/Course.astro b/src/components/Course.astro
index 98e8ad9..9352682 100644
--- a/src/components/Course.astro
+++ b/src/components/Course.astro
@@ -8,7 +8,7 @@ let { title, website, description, provider } = course;
     <!-- Map over the `provider` array. For each provider, check if a website is available.
     If it is, display the provider's name as a link to their website. If not, just display 
     the provider's name as text -->
-    {provider.map((provider, index) => 
+    {provider.map((provider: { website: string | URL; name: unknown; }, index: any) => 
         provider.website 
             ? <a href={provider.website} class="course__provider" key={index}>{provider.name}</a>
             : <span class="course__provider" key={index}>{provider.name}</span>