diff --git a/setup.py b/setup.py
index ac824528f..b54b05dfe 100644
--- a/setup.py
+++ b/setup.py
@@ -64,6 +64,9 @@
     ]
 }
 
+if sys.version_info < (3, 8):
+    extras_require['tests'] += ["hdf5 ==1.12.1"]  # To be able to solve on mamba
+
 extras_require['doc'] = extras_require['examples_extra'] + [
     'nbsite >=0.7.1',
     'numpydoc',