diff --git a/conda/meta.yaml b/conda/meta.yaml
index adce2656f3f554cf6b4a5a5e914e57aef3ccfda1..e81442b19b7120da423c5421aa60a2ee80511da8 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -23,7 +23,6 @@ requirements:
     - pip {{ pip }}
     - exposed
     # bob dependencies
-    - bob.extension
     - bob.io.base
     # other libraries
     - numpy {{ numpy }}
@@ -39,7 +38,6 @@ requirements:
     - python
     - setuptools
     - exposed
-    - bob.extension
     - bob.io.base
     - {{ pin_compatible('numpy') }}
     - {{ pin_compatible('dask') }}
diff --git a/pyproject.toml b/pyproject.toml
index 38a80a5e42d74fc3c828f7dc3ce810ada61c84fd..2a9efaa198e5c7678fa1f73e472e93576e101f5d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,6 @@
     dependencies = [
         "setuptools",
         "numpy",
-        "bob.extension",
         "exposed",
         "bob.io.base",
         "scikit-learn",