diff --git a/Cargo.toml b/Cargo.toml
index b082301b..a8eb72ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ rocket = "0.4.11"
 rocket_contrib = { version = "0.4.11", features = ["json"] }
 rocket_i18n = "0.4.1"
 scheduled-thread-pool = "0.2.6"
-serde = "1.0.137"
+serde = "=1.0.137"
 serde_json = "1.0.81"
 shrinkwraprs = "0.3.0"
 validator = { version = "0.15", features = ["derive"] }