diff --git a/README.md b/README.md
index 81e649200..ac029dfcb 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ ways:
 4.  Create a new entry [for the Meme
     Gallery!](https://marginaleffects.com/vignettes/meme.html)
 
-<a href="http://marginaleffects.com">
+<a href="https://marginaleffects.com">
 <img src="https://user-images.githubusercontent.com/987057/134899484-e3392510-2e94-4c39-9830-53356fa5feed.png" align="center" alt="marginaleffects logo" width="200" />
 </a> <br><br>
 <img src="https://github.com/vincentarelbundock/marginaleffects/workflows/R-CMD-check/badge.svg">
diff --git a/README.qmd b/README.qmd
index 2eb1f430d..a5580a709 100644
--- a/README.qmd
+++ b/README.qmd
@@ -45,7 +45,7 @@ The `marginaleffects` package and the Marginal Effects Zoo book will always be f
 
 
 <div align="center">
-<a href="http://marginaleffects.com">
+<a href="https://marginaleffects.com">
     <img src="https://user-images.githubusercontent.com/987057/134899484-e3392510-2e94-4c39-9830-53356fa5feed.png" align="center" alt="marginaleffects logo" width="200" />
 </a>
 <br><br>