diff --git a/sci-libs/alglib/alglib-3.15.0.recipe b/sci-libs/alglib/alglib-3.15.0.recipe
index e5fbe9210..08c3784c7 100644
--- a/sci-libs/alglib/alglib-3.15.0.recipe
+++ b/sci-libs/alglib/alglib-3.15.0.recipe
@@ -10,11 +10,11 @@ ALGLIB features include:
 * Linear algebra (direct algorithms, EVD/SVD), direct and iterative linear \
 solvers
 * Fast Fourier Transform and many other algorithms"
-HOMEPAGE="http://www.alglib.net/"
+HOMEPAGE="https://www.alglib.net/"
 COPYRIGHT="1999-2019 Sergey Bochkanov"
 LICENSE="GNU GPL v2"
-REVISION="3"
-SOURCE_URI="http://www.alglib.net/translator/re/alglib-$portVersion.cpp.gpl.tgz"
+REVISION="4"
+SOURCE_URI="https://www.alglib.net/translator/re/alglib-$portVersion.cpp.gpl.tgz"
 CHECKSUM_SHA256="55435decad45f4b5acdc9651f40c6e9f99a4f148c983e0e4370c9f23bf3329f9"
 SOURCE_DIR="cpp"
 ADDITIONAL_FILES="CMakeLists.txt.in"