diff --git a/configs/containers/README.md b/configs/containers/README.md
index fba962a0a..393a6485e 100644
--- a/configs/containers/README.md
+++ b/configs/containers/README.md
@@ -15,7 +15,9 @@ To avoid hardcoding specs in the generic container recipes, we keep the specs li
     py-gitpython@3.1.27, py-h5py@3.7.0, py-numpy@1.22.3,
     py-pandas@1.4.0, py-pip, py-pyyaml@6.0, py-scipy@1.9.3, py-shapely@1.8.0, py-xarray@2022.3.0,
     sp@2.3.3, udunits@2.2.28, w3nco@2.4.1, nco@5.0.6,
-    yafyaml@0.5.1, zlib@1.2.13, odc@1.4.6, crtm@v2.4.1-jedi, shumlib@macos_clang_linux_intel_port]
+    yafyaml@0.5.1, zlib@1.2.13, odc@1.4.6, shumlib@macos_clang_linux_intel_port]
+    # Don't build CRTM by default so that it gets built in the JEDI bundles:
+    # crtm@v2.4.1-jedi
     # Don't build ESMF and MAPL for now:
     # https://github.com/JCSDA-internal/MPAS-Model/issues/38
     # https://github.com/jcsda/spack-stack/issues/326