diff --git a/README.rst b/README.rst
index d78765e..44d5f16 100644
--- a/README.rst
+++ b/README.rst
@@ -167,6 +167,9 @@ PHP:
 
 Perl:
 
+* The ``JSON`` and ``Data::Dump`` modules are required (``libjson-perl`` and
+  ``libdata-dump-perl`` in Debian/Ubuntu).
+
 * There's no distinction between ``eval`` and ``eval_block`` in Perl. Both
   calls accept any number of statements and return the result of the last.
 
diff --git a/setup.py b/setup.py
index 38a45ca..39230e0 100755
--- a/setup.py
+++ b/setup.py
@@ -25,6 +25,6 @@
       include_package_data=True,
       exclude_package_data = {'': ['.gitignore']},
 
-      install_requires=['pexpect', 'pkg_resources'],
+      install_requires=['pexpect', 'setuptools'],
       setup_requires=['nose', 'setuptools_git'],
       test_suite='nose.collector')