diff --git a/docs/requirements.txt b/docs/requirements.txt
deleted file mode 100644
index 27ba63e9..00000000
--- a/docs/requirements.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-numpy
-scipy
-ipython
diff --git a/requirements.txt b/requirements.txt
index 45fa35b8..27ba63e9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 numpy
-pypubsub
+scipy
 ipython