diff --git a/Cargo.lock b/Cargo.lock
index 0d0053c084..cb6d539189 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -773,18 +773,18 @@ checksum = "28b9d6de7f49e22cf97ad17fc4036ece69300032f45f78f30b4a4482cdc3f4a6"
 
 [[package]]
 name = "const_format"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae592b8ddbf42b388f8211f0fd4d0985768ed7316348277c250dca4513695492"
+checksum = "4556f63e28a78fa5e6f310cfea5647a25636def49a338ab69e33b34a3382057b"
 dependencies = [
  "const_format_proc_macros",
 ]
 
 [[package]]
 name = "const_format_proc_macros"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "98b53b21a34874c03f4ee8fe5a5dbd977fbe09cfa43b7e2362d94f33e42d56af"
+checksum = "552782506c398da94466b364973b563887e0ca078bf33a76d4163736165e3594"
 dependencies = [
  "proc-macro2 1.0.24",
  "quote 1.0.9",
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index faf164252b..e054eca7a4 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -16,7 +16,7 @@ clap = "2.33.1"
 criterion-stats = "0.3.0"
 ctrlc = { version = "3.1.9", features = ["termination"] }
 console = "0.14.1"
-const_format = "0.2.20"
+const_format = "0.2.21"
 log = "0.4.14"
 humantime = "2.0.1"
 num-traits = "0.2"