diff --git a/Cargo.toml b/Cargo.toml
index 39659c1..594704b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,8 +19,8 @@ path = "src/main.rs"
 clap = "2"
 chrono = { version = "0.4", features = ["serde"] }
 rusqlite = { version = "0.25.3", features = ["chrono", "bundled"] }
-thiserror = "*"
-directories = "*"
+thiserror = "1"
+directories = "3"
 serde = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.8"
 toml = "0.5"
@@ -32,7 +32,7 @@ regex = "1.5"
 lazy_static = "1.4"
 tempfile = "3"
 serde_json = "1.0"
-hostname = "*"
+hostname = "0.3"
 
 [dev-dependencies]
 pretty_assertions = "0.7.2"