diff --git a/setup.cfg b/setup.cfg
index d3c4fe0cb35ce..e174b75df1ee0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -50,6 +50,12 @@ test =
     hypothesis>=5.5.3
     pytest>=6.0
     pytest-xdist>=1.31
+# optional extras for recommended dependencies
+# see: doc/source/getting_started/install.rst
+numexpr =
+    numexpr>=2.7.1
+bottleneck =
+    bottleneck>=1.3.1
 
 [build_ext]
 inplace = True