diff --git a/Cargo.lock b/Cargo.lock
index 2381c5932..703d44a91 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -612,7 +612,7 @@ dependencies = [
  "criterion-plot",
  "csv",
  "futures",
- "itertools",
+ "itertools 0.10.5",
  "lazy_static",
  "num-traits",
  "oorandom",
@@ -635,7 +635,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d00996de9f2f7559f7f4dc286073197f83e92256a59ed395f9aac01fe717da57"
 dependencies = [
  "cast",
- "itertools",
+ "itertools 0.10.5",
 ]
 
 [[package]]
@@ -1172,6 +1172,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.8"
@@ -1264,7 +1273,7 @@ dependencies = [
  "criterion",
  "docopt",
  "env_logger",
- "itertools",
+ "itertools 0.12.1",
  "log",
  "num_cpus",
  "openssl",
diff --git a/Cargo.toml b/Cargo.toml
index 453d01cf9..fd7c523b6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ actix-rt = "1"
 actix-web = "3"
 docopt = "1"
 env_logger = "0.9"
-itertools = "0.10"
+itertools = "0.12"
 log = "0.4"
 num_cpus = "1.13"
 openssl = "0.10.60"