diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4425444a289b67827af7eafb10e42bdd7d30aaf8..55e475637b83cb385ead123473177e0092d60c88 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 matplotlib
 memory_profiler
-numpydoc
+numpydoc==0.9.2
 pillow
 pytest
 pytest-cov