diff --git a/pkgs/development/libraries/icu/default.nix b/pkgs/development/libraries/icu/default.nix
index ec5447a751b4..a330d11e7855 100644
--- a/pkgs/development/libraries/icu/default.nix
+++ b/pkgs/development/libraries/icu/default.nix
@@ -24,8 +24,8 @@ let
 in
 {
   icu78 = make-icu {
-    version = "78.1";
-    hash = "sha256-Yhf1jKObIxJ2Bc/Gx+DTR1/ksNYxVwETg9cWy0FheIY=";
+    version = "78.2";
+    hash = "sha256-Pploe1xDXUsgljDi0uu3mQbJhGheeGNQeLZy4DyJ3zU=";
   };
   icu77 = make-icu {
     version = "77.1";