diff --git a/pkgs/by-name/um/umami/package.nix b/pkgs/by-name/um/umami/package.nix
index 9df179d015a1..e8c7c978287a 100644
--- a/pkgs/by-name/um/umami/package.nix
+++ b/pkgs/by-name/um/umami/package.nix
@@ -72,7 +72,7 @@ let
 in
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "umami";
-  version = "3.0.2";
+  version = "3.0.3";
 
   nativeBuildInputs = [
     makeWrapper
@@ -84,21 +84,27 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     owner = "umami-software";
     repo = "umami";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-6ega3ShfZlEnoFuFSh420hB8sp2qoJuAYnzeoOdpODs=";
+    hash = "sha256-rkOD52suE6bihJqKvMdIvqHRIcWhSxXzUkCfmdNbC40=";
   };
 
-  # install dev dependencies as well, for rollup
-  pnpmInstallFlags = [ "--prod=false" ];
-
   pnpmDeps = pnpm.fetchDeps {
     inherit (finalAttrs)
       pname
-      pnpmInstallFlags
       version
       src
       ;
+    # prevent downloading dependencies for windows
+    # which bloat derivation size and fail to build on hydra
+    # https://github.com/NixOS/nixpkgs/pull/467820#issuecomment-3624054271
+    pnpmInstallFlags = [
+      "--force=false"
+      "--os=linux"
+      "--os=darwin"
+      "--cpu=x64"
+      "--cpu=arm64"
+    ];
     fetcherVersion = 2;
-    hash = "sha256-zHpIqhxfvJ/so7bKvrGMqVGGnquJNnSI/0q3PE+VQ1Y=";
+    hash = "sha256-bqeJ0wzCtnuR6V67Qe1N9UcaHPLziuBhsn7eN8JVJbQ=";
   };
 
   env.CYPRESS_INSTALL_BINARY = "0";
diff --git a/pkgs/by-name/um/umami/sources.json b/pkgs/by-name/um/umami/sources.json
index 1f691d4d685b..48c653cabebc 100644
--- a/pkgs/by-name/um/umami/sources.json
+++ b/pkgs/by-name/um/umami/sources.json
@@ -1,7 +1,7 @@
 {
   "geocities": {
-    "rev": "6ba4792cd60bfab42cab9ff0b0614106a6f98cb9",
-    "date": "2025-12-04",
-    "hash": "sha256-1NJbjXHk2jL18FTyN5CpWYIe1JO4bCqrgb/YTobDniY="
+    "rev": "c311451d8c87eff88329f08a0fae5f84fc0303fe",
+    "date": "2025-12-11",
+    "hash": "sha256-tDK2p1VUmVfbzl0EhcGZbWP/1ao/U3f9vcK49f0MErc="
   }
 }