diff --git a/Cargo.lock b/Cargo.lock
index 496dbe204..6d2e8d444 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1661,18 +1661,18 @@ dependencies = [
 
 [[package]]
 name = "enum-iterator"
-version = "1.2.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91a4ec26efacf4aeff80887a175a419493cb6f8b5480d26387eb0bd038976187"
+checksum = "706d9e7cf1c7664859d79cd524e4e53ea2b67ea03c98cc2870c5e539695d597e"
 dependencies = [
  "enum-iterator-derive",
 ]
 
 [[package]]
 name = "enum-iterator-derive"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "828de45d0ca18782232dfb8f3ea9cc428e8ced380eb26a520baaacfc70de39ce"
+checksum = "355f93763ef7b0ae1c43c4d8eccc9d5848d84ad1a1d8ce61c421d1ac85a19d05"
 dependencies = [
  "proc-macro2 1.0.53",
  "quote 1.0.26",
diff --git a/Cargo.toml b/Cargo.toml
index 064d1da4c..38a826b99 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -181,7 +181,7 @@ eager = "0.1.0"
 ed25519-dalek = "=1.0.1"
 ed25519-dalek-bip32 = "0.2.0"
 either = "1.8.1"
-enum-iterator = "1.2.0"
+enum-iterator = "1.4.0"
 env_logger = "0.9.3"
 etcd-client = "0.8.1"
 fast-math = "0.1"
diff --git a/programs/sbf/Cargo.lock b/programs/sbf/Cargo.lock
index b8e10067f..82fd6e2cf 100644
--- a/programs/sbf/Cargo.lock
+++ b/programs/sbf/Cargo.lock
@@ -1474,18 +1474,18 @@ dependencies = [
 
 [[package]]
 name = "enum-iterator"
-version = "1.2.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91a4ec26efacf4aeff80887a175a419493cb6f8b5480d26387eb0bd038976187"
+checksum = "706d9e7cf1c7664859d79cd524e4e53ea2b67ea03c98cc2870c5e539695d597e"
 dependencies = [
  "enum-iterator-derive",
 ]
 
 [[package]]
 name = "enum-iterator-derive"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "828de45d0ca18782232dfb8f3ea9cc428e8ced380eb26a520baaacfc70de39ce"
+checksum = "355f93763ef7b0ae1c43c4d8eccc9d5848d84ad1a1d8ce61c421d1ac85a19d05"
 dependencies = [
  "proc-macro2 1.0.53",
  "quote 1.0.26",