diff --git a/Project.toml b/Project.toml
index 6a76824..d67ab43 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ParameterEstimation"
 uuid = "b4cd1eb8-1e24-11e8-3319-93036a3eb9f3"
-authors = ["Oren Bassik <orebas@yahoo.com>", "Yosef Berman <yberman1@gradcenter.cuny.edu>", "Alexander Demin <sumiya382382@gmail.com>", "Soo Go <sgo@gradcenter.cuny.edu>", "Hoon Hong <hong@ncsu.edu>", "Ilia Ilmer <iilmer@gradcenter.cuny.edu>", "Alexey Ovchinnikov <aovchinnikov@qc.cuny.edu>", "Christopher Rackauckas <accounts@chrisrackauckas.com>", "Pedro Soto <pedro.soto@maths.ox.ac.uk>", "Chee Yap <cyap@nyu.edu>"]
 version = "0.4.4"
+authors = ["Oren Bassik <orebas@yahoo.com>", "Yosef Berman <yberman1@gradcenter.cuny.edu>", "Alexander Demin <sumiya382382@gmail.com>", "Soo Go <sgo@gradcenter.cuny.edu>", "Hoon Hong <hong@ncsu.edu>", "Ilia Ilmer <iilmer@gradcenter.cuny.edu>", "Alexey Ovchinnikov <aovchinnikov@qc.cuny.edu>", "Christopher Rackauckas <accounts@chrisrackauckas.com>", "Pedro Soto <pedro.soto@maths.ox.ac.uk>", "Chee Yap <cyap@nyu.edu>"]
 
 [deps]
 BaryRational = "91aaffc3-5777-4842-85b7-5d3d5d6a3494"
@@ -44,7 +44,7 @@ Suppressor = "0.2"
 TaylorDiff = "0.2"
 TaylorSeries = "0.12 - 0.30"
 Test = "1.10"
-TestSetExtensions = "2"
+TestSetExtensions = "2, 4"
 julia = "1"
 
 [extras]