diff --git a/Cargo.lock b/Cargo.lock
index ec5aecfa09..37a3305233 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1016,9 +1016,9 @@ checksum = "a9a7ab5d64814df0fe4a4b5ead45ed6c5f181ee3ff04ba344313a6c80446c5d4"
 
 [[package]]
 name = "once_cell"
-version = "1.7.1"
+version = "1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea78b9742c52ac729753c1590e9adc5248ea9bdaf974597efd46c74cfaa5fb54"
+checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
 
 [[package]]
 name = "oorandom"