diff --git a/Cargo.lock b/Cargo.lock
index 76fac74e..6a22928a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3044,6 +3044,7 @@ dependencies = [
  "ldap3",
  "lindera-tantivy",
  "migrations_internals",
+ "once_cell",
  "openssl",
  "plume-api",
  "plume-common",
diff --git a/plume-models/Cargo.toml b/plume-models/Cargo.toml
index 077897e1..ec97f278 100644
--- a/plume-models/Cargo.toml
+++ b/plume-models/Cargo.toml
@@ -34,6 +34,7 @@ glob = "0.3.0"
 lindera-tantivy = { version = "0.7.1", optional = true }
 tracing = "0.1.22"
 riker = "0.4.2"
+once_cell = "1.5.2"
 
 [dependencies.chrono]
 features = ["serde"]