diff --git a/pkgs/development/libraries/nspr/default.nix b/pkgs/development/libraries/nspr/default.nix
index 59a3b4975793..586c4ddb94fc 100644
--- a/pkgs/development/libraries/nspr/default.nix
+++ b/pkgs/development/libraries/nspr/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = with lib; {
-    homepage = "https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Reference/NSPR_functions";
+    homepage = "https://firefox-source-docs.mozilla.org/nspr/index.html";
     description = "Netscape Portable Runtime, a platform-neutral API for system-level and libc-like functions";
     maintainers = with maintainers; [ ajs124 hexa ];
     platforms = platforms.all;
diff --git a/pkgs/development/python-modules/tlds/default.nix b/pkgs/development/python-modules/tlds/default.nix
index 5efe067d2ed3..b1248d18b283 100644
--- a/pkgs/development/python-modules/tlds/default.nix
+++ b/pkgs/development/python-modules/tlds/default.nix
@@ -26,7 +26,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Automatically updated list of valid TLDs taken directly from IANA";
-    homepage = "https://github.com/mweinelt/tlds";
+    homepage = "https://github.com/kichik/tlds";
     license = licenses.mit;
     maintainers = with maintainers; [ hexa ];
   };
diff --git a/pkgs/servers/pinnwand/default.nix b/pkgs/servers/pinnwand/default.nix
index a0bfe6559a3e..c7549e1913a1 100644
--- a/pkgs/servers/pinnwand/default.nix
+++ b/pkgs/servers/pinnwand/default.nix
@@ -58,7 +58,7 @@ with python3.pkgs; buildPythonApplication rec {
   meta = with lib; {
     changelog = "https://github.com/supakeen/pinnwand/releases/tag/v${version}";
     description = "Python pastebin that tries to keep it simple";
-    homepage = "https://supakeen.com/project/pinnwand/";
+    homepage = "https://github.com/supakeen/pinnwand";
     license = licenses.mit;
     maintainers = with maintainers; [ hexa ];
     mainProgram = "pinnwand";