diff --git a/Project.toml b/Project.toml
index 59234a0596..99053f3fd0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -107,7 +107,7 @@ PrecompileTools = "1"
 Preferences = "1"
 Primes = "0.5"
 Printf = "1"
-PseudoPotentialIO = "0.1"
+PseudoPotentialIO = "0.1, 0.2"
 Random = "1"
 Roots = "2"
 SparseArrays = "1"