diff --git a/requirements.txt b/requirements.txt
index 413effe2..805e4843 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ docutils>=0.10
 mock>1.0
 numpy>=1.16.0
 quantities>=0.12.1
-lazyarray>=0.4.0
+lazyarray>=0.5.0
 neo>=0.10.0
 setuptools>=20.5
 nose
diff --git a/setup.py b/setup.py
index 29630ba8..19b6e774 100644
--- a/setup.py
+++ b/setup.py
@@ -114,7 +114,7 @@ def find(self, command):
                  'Programming Language :: Python :: 3.9',
                  'Topic :: Scientific/Engineering'],
     cmdclass={'build_py': build},
-    install_requires=['numpy>=1.16.1', 'lazyarray>=0.4.0', 'neo>=0.10.0',
+    install_requires=['numpy>=1.16.1', 'lazyarray>=0.5.0', 'neo>=0.10.0',
                       'quantities>=0.12.1'],
     extras_require={
         'examples': ['matplotlib', 'scipy'],