diff --git a/Project.toml b/Project.toml
index 23e5110..ab6925e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -26,7 +26,11 @@ LibExpat = "^0.6.1"
 Graphs = "^1.4.1"
 ProtoBuf = "1"
 StableRNGs = "^1.0.0"
-julia = "^1.3.0"
+julia = "^1.6.0"
+Random = "^1.6.0"
+Serialization = "^1.6.0"
+SparseArrays = "^1.6.0"
+Statistics = "^1.6.0"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"