diff --git a/config/build/env_vars.yaml b/config/build/env_vars.yaml
index 11ca8eb..ef86fa4 100644
--- a/config/build/env_vars.yaml
+++ b/config/build/env_vars.yaml
@@ -16,6 +16,7 @@ defaults:
   PYAUTO_SMALL_DATASETS: "1"  # Cap grids/masks to 15x15, reduce MGE gaussians
   PYAUTO_DISABLE_JAX: "1"              # Force use_jax=False, avoid JIT compilation overhead
   PYAUTO_FAST_PLOTS: "1"               # Skip tight_layout() + critical curve/caustic overlays
+  PYAUTO_SKIP_WORKSPACE_VERSION_CHECK: "1"  # profile-owned so the base-env scrub (#161 step 3) cannot drop the mega-run's CI injection
   JAX_ENABLE_X64: "True"               # Enable 64-bit precision in JAX
   NUMBA_CACHE_DIR: "/tmp/numba_cache"   # Writable cache dir for numba
   MPLCONFIGDIR: "/tmp/matplotlib"       # Writable config dir for matplotlib