diff --git a/chrono-tz-build/Cargo.toml b/chrono-tz-build/Cargo.toml
index 7a6c9c5..3218718 100644
--- a/chrono-tz-build/Cargo.toml
+++ b/chrono-tz-build/Cargo.toml
@@ -13,12 +13,14 @@ documentation = "https://docs.rs/chrono-tz-build"
 
 [features]
 filter-by-regex = ["regex"]
-case-insensitive = ["uncased", "phf/uncased"]
+case-insensitive = ["uncased", "phf_shared/uncased"]
 regex = ["dep:regex"]
 
 [dependencies]
 parse-zoneinfo = { version = "0.3" }
 regex = { default-features = false, version = "1", optional = true }
-phf = { version = "0.11", default-features = false }
 phf_codegen = { version = "0.11", default-features = false }
 uncased = { version = "0.9", optional = true, default-features = false }
+
+# needed only to forward feature for uncased
+phf_shared = { version = "0.11", default-features = false, optional = true }