diff --git a/Project.toml b/Project.toml
index debd0c153..2bbf98aa6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,21 +21,21 @@ TSne = "24678dba-d5e9-5843-a4c6-250288b04835"
 Term = "22787eb5-b846-44ae-b979-8e399b8463ab"
 
 [compat]
-Clustering = ">= 0.14"
-DataFrames = ">= 1.4"
-Distances = ">= 0.10"
-Distributions = ">= 0.25"
+Clustering = "0.14"
+DataFrames = "1.4"
+Distances = "0.10"
+Distributions = "0.25"
 MultipleTesting = "0.5"
-MultivariateStats = ">= 0.9.1"
+MultivariateStats = "0.9"
 NamedArrays = "0.9"
 OnlineStats = "1"
-PooledArrays = ">= 1.1"
+PooledArrays = "1.1"
 PopGenCore = "0.7"
 Reexport = "1"
 StatsBase = "0.33"
 TSne = "1"
 Term = "1"
-julia = ">= 1.6"
+julia = "1.6, 1.7, 1.8"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"