diff --git a/pkgs/applications/audio/muse/default.nix b/pkgs/applications/audio/muse/default.nix
index 6ba29226b585..e7332aa18759 100644
--- a/pkgs/applications/audio/muse/default.nix
+++ b/pkgs/applications/audio/muse/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = "https://www.muse-sequencer.org/";
+    homepage = "https://muse-sequencer.github.io/";
     description = "MIDI/Audio sequencer with recording and editing capabilities";
     longDescription = ''
       MusE is a MIDI/Audio sequencer with recording and editing capabilities
diff --git a/pkgs/applications/editors/elvis/default.nix b/pkgs/applications/editors/elvis/default.nix
index 3a6c8c97b221..df8f255de5e0 100644
--- a/pkgs/applications/editors/elvis/default.nix
+++ b/pkgs/applications/editors/elvis/default.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation {
   configureFlags = [ "--ioctl=termios" ];
 
   meta = {
-    homepage = "http://elvis.vi-editor.org/";
+    homepage = "http://elvis.the-little-red-haired-girl.org/";
     description = "A vi clone for Unix and other operating systems";
     license = stdenv.lib.licenses.free;
   };
diff --git a/pkgs/development/libraries/audio/lvtk/default.nix b/pkgs/development/libraries/audio/lvtk/default.nix
index d4a0f671e8f8..6bc487e26162 100644
--- a/pkgs/development/libraries/audio/lvtk/default.nix
+++ b/pkgs/development/libraries/audio/lvtk/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A set C++ wrappers around the LV2 C API";
-    homepage = "http://lvtoolkit.org";
+    homepage = "https://lvtk.org/";
     license = licenses.gpl3;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/phonon/default.nix b/pkgs/development/libraries/phonon/default.nix
index bb43604db0c5..85ba37a9d8a6 100644
--- a/pkgs/development/libraries/phonon/default.nix
+++ b/pkgs/development/libraries/phonon/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   version = "4.11.1";
 
   meta = {
-    homepage = "https://phonon.kde.org/";
+    homepage = "https://community.kde.org/Phonon";
     description = "Multimedia API for Qt";
     license = stdenv.lib.licenses.lgpl2;
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/development/libraries/psqlodbc/default.nix b/pkgs/development/libraries/psqlodbc/default.nix
index fdc35f149a33..43da67d3d9b6 100644
--- a/pkgs/development/libraries/psqlodbc/default.nix
+++ b/pkgs/development/libraries/psqlodbc/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--with-iodbc=${libiodbc}" ];
 
   meta = with stdenv.lib; {
-    homepage = "http://psqlodbc.projects.postgresql.org/";
+    homepage = "https://odbc.postgresql.org/";
     description = "ODBC driver for PostgreSQL";
     license = licenses.lgpl2;
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/science/math/openlibm/default.nix b/pkgs/development/libraries/science/math/openlibm/default.nix
index 8c3b03bd7c67..17197823d6ef 100644
--- a/pkgs/development/libraries/science/math/openlibm/default.nix
+++ b/pkgs/development/libraries/science/math/openlibm/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "High quality system independent, portable, open source libm implementation";
-    homepage = "https://www.openlibm.org/";
+    homepage = "https://openlibm.org/";
     license = stdenv.lib.licenses.mit;
     maintainers = [ stdenv.lib.maintainers.ttuegel ];
     platforms = stdenv.lib.platforms.all;