diff --git a/pkgs/by-name/li/libphidget22/package.nix b/pkgs/by-name/li/libphidget22/package.nix
index 8dd3d5e2f475d..3475b7451fe08 100644
--- a/pkgs/by-name/li/libphidget22/package.nix
+++ b/pkgs/by-name/li/libphidget22/package.nix
@@ -5,14 +5,16 @@
   automake,
   libusb1,
 }:
-
+let
+  version = "1.20.20240909";
+in
 stdenv.mkDerivation {
   pname = "libphidget22";
-  version = "0-unstable-2024-04-11";
+  inherit version;
 
   src = fetchurl {
-    url = "https://cdn.phidgets.com/downloads/phidget22/libraries/linux/libphidget22.tar.gz";
-    hash = "sha256-mDoYVs0LhBb3+vzKjzYr9EmcrztmA4cy9xh5ONxHaxI=";
+    url = "https://www.phidgets.com/downloads/phidget22/libraries/linux/libphidget22/libphidget22-${version}.tar.gz";
+    hash = "sha256-20Y7cukEzq/Rf2v91SYTC1yCtS4p5aaG4aK8x6/6ebk=";
   };
 
   nativeBuildInputs = [ automake ];
diff --git a/pkgs/by-name/li/libphidget22extra/package.nix b/pkgs/by-name/li/libphidget22extra/package.nix
index b67d2026b655f..ec02cde4baaa4 100644
--- a/pkgs/by-name/li/libphidget22extra/package.nix
+++ b/pkgs/by-name/li/libphidget22extra/package.nix
@@ -6,14 +6,16 @@
   libusb1,
   libphidget22,
 }:
-
+let
+  version = "1.20.20240909";
+in
 stdenv.mkDerivation {
   pname = "libphidget22extra";
-  version = "0-unstable-2024-04-11";
+  inherit version;
 
   src = fetchurl {
-    url = "https://cdn.phidgets.com/downloads/phidget22/libraries/linux/libphidget22extra.tar.gz";
-    hash = "sha256-UD6Crr1dl7c3NOAVNi3xrXJI3OYPLZBJX1MXVvbyEUE=";
+    url = "https://www.phidgets.com/downloads/phidget22/libraries/linux/libphidget22extra/libphidget22extra-${version}.tar.gz";
+    hash = "sha256-/08pzaGeWSAbHezE0BOayWdp+iv+DtrHMVN7CJlZAJc=";
   };
 
   nativeBuildInputs = [ automake ];