diff --git a/Cargo.toml b/Cargo.toml
index 913c1fa..78a8cb2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,8 +8,11 @@ license = "MIT"
 edition = "2018"
 
 [features]
-default = ["read-url"]
+default = ["read-url", "zip-default", "reqwest-default"]
 read-url = ["reqwest", "futures"]
+zip-default = ["zip/default"]
+reqwest-default = ["reqwest/default"]
+reqwest-rustls-tls = ["reqwest/rustls-tls"]
 
 [dependencies]
 bytes = "1"
@@ -20,12 +23,12 @@ serde_derive = "1.0"
 chrono = "0.4"
 itertools = "0.11"
 sha2 = "0.10"
-zip = "0.6"
 thiserror = "1"
 rgb = "0.8"
 
 futures = { version = "0.3", optional = true }
-reqwest = { version = "0.11", optional = true, features = ["blocking"]}
+reqwest = { version = "0.11", optional = true, default-features = false, features = ["blocking"]}
+zip = { version = "0.6", default-features = false, features = ["deflate"] }
 
 [dev-dependencies]
 serde_json = "1.0"