diff --git a/gnu/packages/image.scm b/gnu/packages/image.scm
index 393ee7e08b2..ea1c178bc1d 100644
--- a/gnu/packages/image.scm
+++ b/gnu/packages/image.scm
@@ -553,7 +553,7 @@ extracting icontainer icon files.")
    (source
      (origin
        (method url-fetch)
-       (uri (string-append "http://download.osgeo.org/libtiff/tiff-"
+       (uri (string-append "https://download.osgeo.org/libtiff/tiff-"
                            version ".tar.gz"))
        (sha256
         (base32