diff --git a/pkgs/development/libraries/icu/73.nix b/pkgs/development/libraries/icu/73.nix
new file mode 100644
index 00000000000..1a5536c0ce8
--- /dev/null
+++ b/pkgs/development/libraries/icu/73.nix
@@ -0,0 +1,4 @@
+import ./base.nix {
+  version = "73.1";
+  sha256 = "sha256-pFdDHeFktKp+ygDtE00A37+Ip3xphqEK53dPwHa7jEU=";
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 4f6585d4f5a..1bd4f74ad58 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -20910,6 +20910,9 @@ with pkgs;
   icu72 = callPackage ../development/libraries/icu/72.nix ({
     nativeBuildRoot = buildPackages.icu72.override { buildRootOnly = true; };
   });
+  icu73 = callPackage ../development/libraries/icu/73.nix ({
+    nativeBuildRoot = buildPackages.icu72.override { buildRootOnly = true; };
+  });
 
   icu = icu72;