diff --git a/misc/requirements/requirements-tox.txt b/misc/requirements/requirements-tox.txt
index 3f2792189..f077153ff 100644
--- a/misc/requirements/requirements-tox.txt
+++ b/misc/requirements/requirements-tox.txt
@@ -1,6 +1,6 @@
 # This file is automatically generated by scripts/dev/recompile_requirements.py
 
-pluggy==0.3.1
+pluggy==0.4.0
 py==1.4.31
 tox==2.3.1
 virtualenv==15.0.3
diff --git a/misc/requirements/requirements-tox.txt-raw b/misc/requirements/requirements-tox.txt-raw
index 053148f84..61e0c0849 100644
--- a/misc/requirements/requirements-tox.txt-raw
+++ b/misc/requirements/requirements-tox.txt-raw
@@ -1 +1,4 @@
 tox
+
+# The latest tox release still depends on pluggy < 0.4...
+pluggy==0.4.0