diff --git a/Cargo.lock b/Cargo.lock
index 5a6ad3ea1..d0e8f9d0a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -757,6 +757,7 @@ dependencies = [
  "itertools",
  "maplit",
  "num_cpus",
+ "once_cell",
  "pest",
  "pest_derive",
  "protobuf",
@@ -920,9 +921,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.14.0"
+version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f7254b99e31cad77da24b08ebf628882739a608578bb1bcdfc1f9c21260d7c0"
+checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
 
 [[package]]
 name = "oorandom"
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index eb9612f56..4a97f7f09 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -28,6 +28,7 @@ git2 = "0.15.0"
 hex = "0.4.3"
 itertools = "0.10.5"
 maplit = "1.0.2"
+once_cell = "1.15.0"
 pest = "2.3.1"
 pest_derive = "2.3.1"
 protobuf = { version = "3.0.1", features = ["with-bytes"] }