diff --git a/Project.toml b/Project.toml
index 95d3c42d39..95d0a0cd0a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,7 +9,6 @@ CodeTracking = "da1fd8a2-8d9e-5ec2-8556-3022fb5608a2"
 ConstructionBase = "187b0558-2788-49d3-abe0-74a17ed4e7c9"
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 DelimitedFiles = "8bb1440f-4735-579b-a4ab-409b98df4dab"
-DiffEqBase = "2b5f629d-d688-5b77-993f-72d75c75574e"
 DiffEqCallbacks = "459566f4-90b8-5000-8ac3-15dfb0a30def"
 Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 EllipsisNotation = "da5c29d0-fa7d-589e-88eb-ea29b0a81949"
@@ -69,8 +68,7 @@ ConstructionBase = "1.5"
 Convex = "0.16"
 DataStructures = "0.18.15"
 DelimitedFiles = "1"
-DiffEqBase = "6 - 6.143"
-DiffEqCallbacks = "2.35"
+DiffEqCallbacks = "2.35, 3, 4"
 Downloads = "1.6"
 ECOS = "1.1.2"
 EllipsisNotation = "1.0"