diff --git a/static/js/cookbook-deps-recipes.js b/static/js/cookbook-deps-recipes.js
index afb1b7287..ba4f1b444 100644
--- a/static/js/cookbook-deps-recipes.js
+++ b/static/js/cookbook-deps-recipes.js
@@ -56,7 +56,7 @@ const _RECIPES = [
     match: () => true,
     variants: {
       pip:    { commands: ['CMAKE_ARGS="-DGGML_CUDA=on" uv pip install -U "llama-cpp-python[server]"'] },
-      docker: { commands: ['docker pull ghcr.io/ggerganov/llama.cpp:server-cuda'] },
+      docker: { commands: ['docker pull ghcr.io/ggml-org/llama.cpp:server-cuda'] },
     },
   },
 ];
diff --git a/tests/test_cookbook_deps_recipes.py b/tests/test_cookbook_deps_recipes.py
new file mode 100644
index 000000000..9bc02b0df
--- /dev/null
+++ b/tests/test_cookbook_deps_recipes.py
@@ -0,0 +1,27 @@
+"""Guard the llama.cpp Docker pull recipe surfaced in Cookbook → Dependencies.
+
+The upstream repo moved from github.com/ggerganov/llama.cpp to
+github.com/ggml-org/llama.cpp. The old GHCR namespace
+(ghcr.io/ggerganov/llama.cpp) no longer publishes images, so the
+docker variant in the Dependencies panel returned
+"failed to resolve reference … not found" when copied verbatim (#4457).
+The other llama.cpp reference in routes/cookbook_routes.py already uses
+ggml-org; this guards the JS recipe so the two stay aligned.
+"""
+from pathlib import Path
+
+RECIPES_JS = (
+    Path(__file__).resolve().parent.parent / "static" / "js" / "cookbook-deps-recipes.js"
+)
+
+
+def test_llama_cpp_docker_recipe_uses_ggml_org_namespace():
+    source = RECIPES_JS.read_text(encoding="utf-8")
+
+    assert "ghcr.io/ggml-org/llama.cpp:server-cuda" in source, (
+        "Expected the llama.cpp docker recipe to pull from the ggml-org namespace."
+    )
+    assert "ghcr.io/ggerganov/llama.cpp" not in source, (
+        "The ggerganov GHCR namespace no longer publishes llama.cpp images. "
+        "Use ghcr.io/ggml-org/llama.cpp:server-cuda."
+    )