diff --git a/mlir/cmake/modules/MLIRDetectPythonEnv.cmake b/mlir/cmake/modules/MLIRDetectPythonEnv.cmake
--- a/mlir/cmake/modules/MLIRDetectPythonEnv.cmake
+++ b/mlir/cmake/modules/MLIRDetectPythonEnv.cmake
@@ -2,37 +2,29 @@
 
 # Finds and configures python packages needed to build MLIR Python bindings.
 macro(mlir_configure_python_dev_packages)
-  if(CMAKE_VERSION VERSION_LESS "3.15.0")
+  if(CMAKE_VERSION VERSION_LESS "3.19.0")
   message(SEND_ERROR
       "Building MLIR Python bindings is known to rely on CMake features "
-      "that require at least version 3.15. Recommend upgrading to 3.18+ "
+      "that require at least version 3.19. Recommend upgrading to 3.19+ "
       "for full support. Detected current version: ${CMAKE_VERSION}")
   endif()
 
+  if(MLIR_DETECT_PYTHON_ENV_PRIME_SEARCH)
+    # Prime the search for python to see if there is a full development
+    # package. This seems to work around cmake bugs searching only for
+    # Development.Module in some environments. However, in other environments
+    # it may interfere with the subsequent search for Development.Module.
+    find_package(Python3 ${LLVM_MINIMUM_PYTHON_VERSION}
+      COMPONENTS Interpreter Development)
+  endif()
+
   # After CMake 3.18, we are able to limit the scope of the search to just
   # Development.Module. Searching for Development will fail in situations where
   # the Python libraries are not available. When possible, limit to just
   # Development.Module.
   # See https://pybind11.readthedocs.io/en/stable/compiling.html#findpython-mode
-  if(CMAKE_VERSION VERSION_LESS "3.18.0")
-    message(WARNING
-        "This version of CMake is not compatible with statically built Python "
-        "installations. If Python fails to detect below this may apply to you. "
-        "Recommend upgrading to at least CMake 3.18. "
-        "Detected current version: ${CMAKE_VERSION}"
-    )
-    set(_python_development_component Development)
-  else()
-    if(MLIR_DETECT_PYTHON_ENV_PRIME_SEARCH)
-      # Prime the search for python to see if there is a full development
-      # package. This seems to work around cmake bugs searching only for
-      # Development.Module in some environments. However, in other environments
-      # it may interfere with the subsequent search for Development.Module.
-      find_package(Python3 ${LLVM_MINIMUM_PYTHON_VERSION}
-        COMPONENTS Interpreter Development)
-    endif()
-    set(_python_development_component Development.Module)
-  endif()
+  set(_python_development_component Development.Module)
+
   find_package(Python3 ${LLVM_MINIMUM_PYTHON_VERSION}
     COMPONENTS Interpreter ${_python_development_component} NumPy REQUIRED)
   unset(_python_development_component)