diff --git a/crates/const-str/Cargo.toml b/crates/const-str/Cargo.toml
index cabf5d3..c642feb 100644
--- a/crates/const-str/Cargo.toml
+++ b/crates/const-str/Cargo.toml
@@ -25,6 +25,9 @@ unstable = []
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
+[dependencies]
+http = { version = "1.0.0", optional = true }
+
 [dependencies.const-str-proc-macro]
 version = "1.0.0"
 path = "../const-str-proc-macro"
@@ -32,5 +35,4 @@ optional = true
 
 [dev-dependencies]
 regex = "1.7.0"
-http = "1.0.0"
 heck = "0.5.0"