diff --git a/pkgs/applications/science/math/mxnet/default.nix b/pkgs/applications/science/math/mxnet/default.nix
index 839537438962..880caaff5afb 100644
--- a/pkgs/applications/science/math/mxnet/default.nix
+++ b/pkgs/applications/science/math/mxnet/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     name = "apache-mxnet-src-${version}-incubating.tar.gz";
-    url = "https://dlcdn.apache.org/incubator/mxnet/${version}/apache-mxnet-src-${version}-incubating.tar.gz";
+    url = "mirror://apache/incubator/mxnet/${version}/apache-mxnet-src-${version}-incubating.tar.gz";
     hash = "sha256-EephMoF02MKblvNBl34D3rC/Sww3rOZY+T442euMkyI=";
   };
 
diff --git a/pkgs/servers/ldap/apache-directory-server/default.nix b/pkgs/servers/ldap/apache-directory-server/default.nix
index a945c321af86..4b7fb4086fba 100644
--- a/pkgs/servers/ldap/apache-directory-server/default.nix
+++ b/pkgs/servers/ldap/apache-directory-server/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "2.0.0.AM26";
 
   src = fetchzip {
-    url = "https://dlcdn.apache.org//directory/apacheds/dist/${version}/apacheds-${version}.zip";
+    url = "mirror://apache/directory/apacheds/dist/${version}/apacheds-${version}.zip";
     sha256 = "sha256-36kDvfSy5rt/3+nivEFTepnIKf6sX0NTgPRm28M+1v4=";
   };