diff --git a/Cargo.toml b/Cargo.toml
index 9e7c673..1a45d4f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,12 +11,12 @@ edition = "2018"
 
 [dependencies]
 num-bigint = "0.2"
-num-bigint-dig = "0.4"
+num-bigint-dig = "0.6"
 num-traits = "0.2"
-pem = "0.4"
-rsa = "0.1.3"
+pem = "0.7"
+rsa = "0.2.0"
 thiserror = "1.0.9"
 yasna = { version = "0.3", features = ["num-bigint"] }
 
 [dev-dependencies]
-rand = "0.6"
+rand = "0.7"