diff --git a/pyproject.toml b/pyproject.toml
index 997a9a1..7a5f41c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -91,6 +91,10 @@ lama = [
 photomaker = [
     "photomaker @ git+https://github.com/TencentARC/PhotoMaker.git",
     "huggingface-hub>=0.20.0",
+    # Upstream PhotoMaker imports `einops` but doesn't declare it in its install_requires
+    # (verified 2026-06-04: cert sweep failed with "No module named 'einops'"). Pin it
+    # here so the extra is self-contained.
+    "einops>=0.7.0",
 ]
 # Optional pre-diffusion super-resolution for small inputs (Real-ESRGAN). Loaded via
 # spandrel (MIT) -- a pure model-loader with NO basicsr dependency (it pulls only
diff --git a/uv.lock b/uv.lock
index c467e98..d404a3b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2288,6 +2288,7 @@ lama = [
     { name = "onnxruntime", version = "1.26.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.11'" },
 ]
 photomaker = [
+    { name = "einops" },
     { name = "huggingface-hub" },
     { name = "photomaker" },
 ]
@@ -2300,6 +2301,7 @@ requires-dist = [
     { name = "accelerate", marker = "extra == 'gpu'", specifier = ">=0.25.0" },
     { name = "click", specifier = ">=8.0.0" },
     { name = "diffusers", marker = "extra == 'gpu'", specifier = ">=0.38.0" },
+    { name = "einops", marker = "extra == 'photomaker'", specifier = ">=0.7.0" },
     { name = "huggingface-hub", marker = "extra == 'lama'", specifier = ">=0.20.0" },
     { name = "huggingface-hub", marker = "extra == 'photomaker'", specifier = ">=0.20.0" },
     { name = "invisible-watermark", marker = "extra == 'detect'", specifier = ">=0.2.0" },