diff --git a/Cargo.lock b/Cargo.lock
index 1b0ea23..9253c55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -34,6 +34,7 @@ dependencies = [
  "mapr",
  "rand",
  "rand_chacha",
+ "rustc_version",
 ]
 
 [[package]]
@@ -94,6 +95,21 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
+[[package]]
+name = "semver"
+version = "1.0.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93f6841e709003d68bb2deee8c343572bf446003ec20a583e76f7b15cebf3711"
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"