diff --git a/Cargo.lock b/Cargo.lock
index 9bd084f4..f9dc4624 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2008,9 +2008,9 @@ checksum = "8d3b63360ec3cb337817c2dbd47ab4a0f170d285d8e5a2064600f3def1402397"
 
 [[package]]
 name = "once_cell"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10acf907b94fc1b1a152d08ef97e7759650268cf986bf127f387e602b02c7e5a"
+checksum = "ea78b9742c52ac729753c1590e9adc5248ea9bdaf974597efd46c74cfaa5fb54"
 
 [[package]]
 name = "opaque-debug"