diff --git a/src/crypto/fuzz/Cargo.toml b/src/crypto/fuzz/Cargo.toml
index c3642d8..daa3e70 100644
--- a/src/crypto/fuzz/Cargo.toml
+++ b/src/crypto/fuzz/Cargo.toml
@@ -14,6 +14,7 @@ afl = {version = "*", optional = true }
 log = "0.4.13"
 arbitrary = "=1.1.3"
 der = {version = "0.5.1", features = ["oid", "alloc", "derive"]}
+serde = "=1.0.198"
 
 [dependencies.crypto]
 path = ".."