diff --git a/pkgs/applications/networking/super-productivity/default.nix b/pkgs/applications/networking/super-productivity/default.nix
index 7c613a8a45a9..251bef91360a 100644
--- a/pkgs/applications/networking/super-productivity/default.nix
+++ b/pkgs/applications/networking/super-productivity/default.nix
@@ -97,7 +97,7 @@ in stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "To Do List / Time Tracker with Jira Integration.";
-    homepage = http://super-productivity.com;
+    homepage = https://super-productivity.com;
     license = licenses.mit;
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ offline ];
diff --git a/pkgs/development/libraries/libav/default.nix b/pkgs/development/libraries/libav/default.nix
index b726d9c2b42a..dfe1455759a6 100644
--- a/pkgs/development/libraries/libav/default.nix
+++ b/pkgs/development/libraries/libav/default.nix
@@ -21,7 +21,7 @@ assert faacSupport -> enableUnfree;
 let inherit (stdenv.lib) optional optionals hasPrefix enableFeature; in
 
 /* ToDo:
-    - more deps, inspiration: http://packages.ubuntu.com/raring/libav-tools
+    - more deps, inspiration: https://packages.ubuntu.com/raring/libav-tools
     - maybe do some more splitting into outputs
 */
 
diff --git a/pkgs/development/libraries/libdbusmenu-qt/default.nix b/pkgs/development/libraries/libdbusmenu-qt/default.nix
index 34ba39d799ed..1342ee6773f7 100644
--- a/pkgs/development/libraries/libdbusmenu-qt/default.nix
+++ b/pkgs/development/libraries/libdbusmenu-qt/default.nix
@@ -3,7 +3,7 @@
 let
   baseName = "libdbusmenu-qt";
   v = "0.9.2";
-  homepage = "http://launchpad.net/${baseName}";
+  homepage = "https://launchpad.net/${baseName}";
   name = "${baseName}-${v}";
 in
 
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ cmake ];
 
   cmakeFlags = "-DWITH_DOC=OFF";
-  
+
   meta = with stdenv.lib; {
     description = "Provides a Qt implementation of the DBusMenu spec";
     inherit homepage;
diff --git a/pkgs/development/libraries/vulkan-headers/default.nix b/pkgs/development/libraries/vulkan-headers/default.nix
index 797c64729ecf..e154403697fe 100644
--- a/pkgs/development/libraries/vulkan-headers/default.nix
+++ b/pkgs/development/libraries/vulkan-headers/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Vulkan Header files and API registry";
-    homepage    = "http://www.lunarg.com";
+    homepage    = https://www.lunarg.com;
     platforms   = platforms.linux;
     license     = licenses.asl20;
     maintainers = [ maintainers.ralith ];
diff --git a/pkgs/development/tools/vulkan-validation-layers/default.nix b/pkgs/development/tools/vulkan-validation-layers/default.nix
index da2612415ba5..d6d5d6d3ea66 100644
--- a/pkgs/development/tools/vulkan-validation-layers/default.nix
+++ b/pkgs/development/tools/vulkan-validation-layers/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "LunarG Vulkan loader";
-    homepage    = "http://www.lunarg.com";
+    homepage    = https://www.lunarg.com;
     platforms   = platforms.linux;
     license     = licenses.asl20;
     maintainers = [ maintainers.ralith ];
diff --git a/pkgs/os-specific/linux/kmod-blacklist-ubuntu/default.nix b/pkgs/os-specific/linux/kmod-blacklist-ubuntu/default.nix
index ee58d8b9c057..266c94fd8c84 100644
--- a/pkgs/os-specific/linux/kmod-blacklist-ubuntu/default.nix
+++ b/pkgs/os-specific/linux/kmod-blacklist-ubuntu/default.nix
@@ -30,7 +30,7 @@ in stdenv.mkDerivation {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://packages.ubuntu.com/source/zesty/kmod;
+    homepage = https://packages.ubuntu.com/source/zesty/kmod;
     description = "Linux kernel module blacklists from Ubuntu";
     platforms = platforms.linux;
   };
diff --git a/pkgs/servers/livepeer/default.nix b/pkgs/servers/livepeer/default.nix
index 105223f31a5b..2e17001abc50 100644
--- a/pkgs/servers/livepeer/default.nix
+++ b/pkgs/servers/livepeer/default.nix
@@ -27,7 +27,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Official Go implementation of the Livepeer protocol";
-    homepage = http://livepeer.org;
+    homepage = https://livepeer.org;
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ elitak ];
diff --git a/pkgs/tools/networking/dhcpdump/default.nix b/pkgs/tools/networking/dhcpdump/default.nix
index 91232b4ffa74..af4b03ab700b 100644
--- a/pkgs/tools/networking/dhcpdump/default.nix
+++ b/pkgs/tools/networking/dhcpdump/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A tool for visualization of DHCP packets as recorded and output by tcpdump to analyze DHCP server responses";
-    homepage = http://packages.ubuntu.com/ru/lucid/dhcpdump;
+    homepage = https://packages.ubuntu.com/ru/lucid/dhcpdump;
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 15372f23dd30..b5df07148d94 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -5083,7 +5083,7 @@ let self = _self // overrides; _self = with self; {
     };
     propagatedBuildInputs = [ EmailMIME EmailSender IOAll IOString OLEStorage_Lite ];
     meta = with stdenv.lib; {
-      homepage = http://www.matijs.net/software/msgconv/;
+      homepage = https://www.matijs.net/software/msgconv/;
       description = "A .MSG to mbox converter";
       license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
       maintainers = with maintainers; [ peterhoeg ];