diff --git a/doc/source/contributor/unit-tests.rst b/doc/source/contributor/unit-tests.rst
index a154786a8..43888332d 100644
--- a/doc/source/contributor/unit-tests.rst
+++ b/doc/source/contributor/unit-tests.rst
@@ -31,7 +31,7 @@ Install OS-specific prerequisites::
 
 Install pip::
 
-    curl -s https://bootstrap.pypa.io/get-pip.py | sudo python
+    curl -s https://bootstrap.pypa.io/3.2/get-pip.py | sudo python
 
 Install common prerequisites::