diff --git a/Cargo.toml b/Cargo.toml
index 46993f5f..544e9f0c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -45,7 +45,7 @@ cookie = { version = "0.18", default-features = false, optional = true }
 once_cell = "1"
 socks = { version = "0.3", optional = true }
 serde = { version = "1", optional = true }
-serde_json = { version = ">=1.0.97", optional = true }
+serde_json = { version = "1.0.97", optional = true }
 encoding_rs = { version = "0.8", optional = true }
 cookie_store = { version = "0.21.1", optional = true, default-features = false, features = ["preserve_order", "serde_json"] }
 log = "0.4"
@@ -58,7 +58,7 @@ brotli-decompressor = { version = "4.0.0", optional = true }
 http-02 = { package = "http", version = "0.2", optional = true }
 http = { version = "1.1", optional = true }
 url = "2.5.0"
-rustls = { version = ">=0.23.19", optional = true, default-features = false, features = ["ring", "logging", "std", "tls12"] }
+rustls = { version = "0.23.19", optional = true, default-features = false, features = ["ring", "logging", "std", "tls12"] }
 
 # This can't be in dev-dependencies due to doc tests.
 hootbin = { version = "0.1.5", optional = true }