diff --git a/matter/Cargo.toml b/matter/Cargo.toml
index 51d9c72..30a57f4 100644
--- a/matter/Cargo.toml
+++ b/matter/Cargo.toml
@@ -36,7 +36,7 @@ rand = "0.8.5"
 esp-idf-sys = { version = "0.32", features = ["binstart"], optional = true }
 openssl = { git = "https://github.com/sfackler/rust-openssl", optional = true }
 foreign-types = { version = "0.4.0", optional = true }
-sha2 = { version = "0.10.6", optional = true }
+sha2 = { version = "0.9.9", optional = true }
 hmac = { version = "0.11.0", optional = true }
 mbedtls = { git = "https://github.com/fortanix/rust-mbedtls", optional = true }
 subtle = "2.4.1"