diff --git a/neuroml/__version__.py b/neuroml/__version__.py
index 5df9004..d0e5b53 100644
--- a/neuroml/__version__.py
+++ b/neuroml/__version__.py
@@ -7,7 +7,7 @@
 """
 
 
-__version__: str = "0.5.1"
+__version__: str = "0.5.2"
 __version_info__: tuple = tuple(int(i) for i in __version__.split("."))
 
 
diff --git a/setup.py b/setup.py
index 8bed278..171c9a3 100644
--- a/setup.py
+++ b/setup.py
@@ -18,12 +18,11 @@
     description="A Python library for working with NeuroML descriptions of neuronal models",
     long_description=long_description,
     long_description_content_type="text/markdown",
-    install_requires=["lxml", "six", "networkx"],
+    install_requires=["lxml", "six", "networkx", "numpy"],
     tests_require=["pytest"],
     extras_require={
         "full": [
             "cython",
-            "numpy",
             "numexpr",
             "tables>=3.3.0",
         ]