diff --git a/Cargo.lock b/Cargo.lock
index e92b7287f3e..da65b376d19 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1985,11 +1985,11 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.11"
+version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
+checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
diff --git a/src/tools/rustfmt/Cargo.toml b/src/tools/rustfmt/Cargo.toml
index 24b3b79343b..3a04fb28f7c 100644
--- a/src/tools/rustfmt/Cargo.toml
+++ b/src/tools/rustfmt/Cargo.toml
@@ -42,7 +42,7 @@ unicode-segmentation = "1.0.0"
 regex = "1.0"
 term = "0.6"
 diff = "0.1"
-log = "0.4"
+log = "0.4.14"
 env_logger = "0.6"
 getopts = "0.2"
 derive-new = "0.5"