diff --git a/webserver/Cargo.lock b/webserver/Cargo.lock
index 0b96a3e55..294af5c04 100644
--- a/webserver/Cargo.lock
+++ b/webserver/Cargo.lock
@@ -936,9 +936,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.11.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b10983b38c53aebdf33f542c6275b0f58a238129d00c4ae0e6fb59738d783ca"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
 
 [[package]]
 name = "opaque-debug"
diff --git a/webserver/Cargo.toml b/webserver/Cargo.toml
index 754e211a4..1748d9f6b 100644
--- a/webserver/Cargo.toml
+++ b/webserver/Cargo.toml
@@ -24,7 +24,7 @@ types = { path = "../crates/types/" }
 uuid = { version = "1.0.0", features = ["serde", "v4"] }
 warp = "0.3.2"
 structopt = "0.3"
-once_cell = "1.11.0"
+once_cell = "1.12.0"
 
 [features]
 portable = [ "config/portable" ]