diff --git a/Cargo.lock b/Cargo.lock
index 7657850..5a916e6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -118,12 +118,6 @@ dependencies = [
  "crypto-common",
 ]
 
-[[package]]
-name = "dtoa"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56899898ce76aaf4a0f24d914c97ea6ed976d42fec6ad33fcbb0a1103e07b2b0"
-
 [[package]]
 name = "fastrand"
 version = "1.6.0"
@@ -175,9 +169,9 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.11.2"
+version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
 [[package]]
 name = "heck"
@@ -199,9 +193,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.7.0"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc633605454125dec4b66843673f01c7df2b89479b32e0ed634e43a91cff62a5"
+checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -216,6 +210,12 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -344,20 +344,26 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+
 [[package]]
 name = "serde"
-version = "1.0.130"
+version = "1.0.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
+checksum = "0f747710de3dcd43b88c9168773254e809d8ddbdf9653b84e2554ab219f17860"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.130"
+version = "1.0.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7bc1a1ab1961464eae040d96713baa5a724a8152c1222492465b54322ec508b"
+checksum = "94ed3a816fb1d101812f83e789f888322c34e291f894f19590dc310963e87a00"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -366,14 +372,15 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.8.21"
+version = "0.9.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8c608a35705a5d3cdc9fbe403147647ff34b921f8e833e49306df898f9b20af"
+checksum = "4a2aed7a697360aae71c545044813761b33c131ba40cbbf721f87bfd86dd07a0"
 dependencies = [
- "dtoa",
  "indexmap",
+ "itoa",
+ "ryu",
  "serde",
- "yaml-rust",
+ "unsafe-libyaml",
 ]
 
 [[package]]
@@ -436,9 +443,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.81"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2afee18b8beb5a596ecb4a2dce128c719b4ba399d34126b9e4396e3f9860966"
+checksum = "a07e33e919ebcd69113d5be0e4d70c5707004ff45188910106854f38b960df4a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -531,6 +538,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "unsafe-libyaml"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "931179334a56395bcf64ba5e0ff56781381c1a5832178280c7d7f91d1679aeb0"
+
 [[package]]
 name = "uuid"
 version = "0.8.2"
diff --git a/Cargo.toml b/Cargo.toml
index 7d30b7d..69d8c3a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,7 +16,7 @@ edition = '2018'
 [dependencies]
 log = "0.4"
 serde = { version = "1", features = ["derive"] }
-serde_yaml = "0.8"
+serde_yaml = "0.9"
 structopt = "0.3"
 uuid = { version = "0.8", features = ["v4"] }
 yaml-rust = "0.4.4"