diff --git a/modules/jenkins/manifests/slave.pp b/modules/jenkins/manifests/slave.pp
index c1b63e8ec1..bdcebbfa75 100644
--- a/modules/jenkins/manifests/slave.pp
+++ b/modules/jenkins/manifests/slave.pp
@@ -148,9 +148,9 @@ class jenkins::slave(
   }
 
   # Packages that need to be installed from pip
+  # Temporarily removed tox so we can pin it separately (see below)
   $pip_packages = [
     'setuptools-git',
-    'tox',
   ]
 
   if $python3 {
@@ -165,12 +165,24 @@ class jenkins::slave(
       provider => pip3,
       require  => Class[pip::python3],
     }
+    # Temporarily handle tox separately so we can pin it
+    package { 'tox':
+      ensure   => '1.6.1',
+      provider => pip3,
+      require  => Class['pip::python3'],
+    }
   } else {
     package { $pip_packages:
       ensure   => latest,  # we want the latest from these
       provider => pip,
       require  => Class[pip],
     }
+    # Temporarily handle tox separately so we can pin it
+    package { 'tox':
+      ensure   => '1.6.1',
+      provider => pip,
+      require  => Class['pip'],
+    }
   }
 
   package { 'python-subunit':