diff --git a/Project.toml b/Project.toml
index ffb93df..fbec68c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,14 +19,14 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 Tracker = "9f7883ad-71c0-57eb-9f7f-b5c9e6d3789c"
 
 [compat]
-Distributions = ">= 0.21.7"
-FileIO = ">= 1.0.7"
-HDF5 = ">= 0.12.4"
-JLD2 = ">= 0.1.3"
-PDMats = ">= 0.9.10"
-Roots = ">= 0.8.3"
-Tracker = ">= 0.2.5"
 julia = "0.7, 1.0, 1.1"
+Distributions = "^0.21.7"
+FileIO = "^1.0.7"
+HDF5 = "^0.12.4"
+JLD2 = "^0.1.3"
+PDMats = "^0.9.10"
+Roots = "^0.8.3"
+Tracker = "^0.2.5"
 
 [extras]
 DSGE = "6cf23378-2c47-544c-b0c3-6efefe57ca11"