diff --git a/Cargo.lock b/Cargo.lock
index 5df55db..30e49b8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -81,7 +81,7 @@ dependencies = [
  "hex",
  "lazy_static",
  "pbp",
- "rand 0.8.5",
+ "rand",
  "serde",
  "serde_derive",
  "sha2 0.7.1",
@@ -166,7 +166,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
 dependencies = [
  "proc-macro2",
- "quote 1.0.37",
+ "quote",
  "syn 2.0.89",
 ]
 
@@ -225,9 +225,9 @@ dependencies = [
 
 [[package]]
 name = "failure"
-version = "0.1.1"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "934799b6c1de475a012a02dab0ace1ace43789ee4b99bcfbf1a2e3e8ced5de82"
+checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
 dependencies = [
  "backtrace",
  "failure_derive",
@@ -235,12 +235,13 @@ dependencies = [
 
 [[package]]
 name = "failure_derive"
-version = "0.1.1"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7cdda555bb90c9bb67a3b670a0f42de8e73f5981524123ad8578aafec8ddb8b"
+checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
- "quote 0.3.15",
- "syn 0.11.11",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
  "synstructure",
 ]
 
@@ -275,17 +276,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "getrandom"
-version = "0.1.16"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
-dependencies = [
- "cfg-if 1.0.0",
- "libc",
- "wasi 0.9.0+wasi-snapshot-preview1",
-]
-
 [[package]]
 name = "getrandom"
 version = "0.2.15"
@@ -294,7 +284,7 @@ checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi",
 ]
 
 [[package]]
@@ -325,7 +315,7 @@ dependencies = [
  "digest 0.7.5",
  "ed25519-dalek",
  "failure",
- "rand 0.7.3",
+ "rand",
  "sha1",
  "sha2 0.7.1",
  "typenum",
@@ -359,12 +349,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "quote"
-version = "0.3.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
-
 [[package]]
 name = "quote"
 version = "1.0.37"
@@ -374,19 +358,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rand"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
-dependencies = [
- "getrandom 0.1.16",
- "libc",
- "rand_chacha 0.2.2",
- "rand_core 0.5.1",
- "rand_hc",
-]
-
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -394,18 +365,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
- "rand_chacha 0.3.1",
- "rand_core 0.6.4",
-]
-
-[[package]]
-name = "rand_chacha"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
-dependencies = [
- "ppv-lite86",
- "rand_core 0.5.1",
+ "rand_chacha",
+ "rand_core",
 ]
 
 [[package]]
@@ -415,16 +376,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.6.4",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
-dependencies = [
- "getrandom 0.1.16",
+ "rand_core",
 ]
 
 [[package]]
@@ -433,16 +385,7 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom 0.2.15",
-]
-
-[[package]]
-name = "rand_hc"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
-dependencies = [
- "rand_core 0.5.1",
+ "getrandom",
 ]
 
 [[package]]
@@ -488,7 +431,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad1e866f866923f252f05c889987993144fb74e722403468a4ebd70c3cd756c0"
 dependencies = [
  "proc-macro2",
- "quote 1.0.37",
+ "quote",
  "syn 2.0.89",
 ]
 
@@ -527,7 +470,7 @@ version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
 dependencies = [
- "rand_core 0.6.4",
+ "rand_core",
 ]
 
 [[package]]
@@ -548,13 +491,13 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "syn"
-version = "0.11.11"
+version = "1.0.109"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
- "quote 0.3.15",
- "synom",
- "unicode-xid",
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -564,27 +507,20 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d46482f1c1c87acd84dea20c1bf5ebff4c757009ed6bf19cfd36fb10e92c4e"
 dependencies = [
  "proc-macro2",
- "quote 1.0.37",
+ "quote",
  "unicode-ident",
 ]
 
-[[package]]
-name = "synom"
-version = "0.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
-dependencies = [
- "unicode-xid",
-]
-
 [[package]]
 name = "synstructure"
-version = "0.6.1"
+version = "0.12.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
+checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
 dependencies = [
- "quote 0.3.15",
- "syn 0.11.11",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -610,9 +546,9 @@ checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
 [[package]]
 name = "unicode-xid"
-version = "0.0.4"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
+checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
 [[package]]
 name = "version_check"
@@ -620,12 +556,6 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
-[[package]]
-name = "wasi"
-version = "0.9.0+wasi-snapshot-preview1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
@@ -671,7 +601,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
- "quote 1.0.37",
+ "quote",
  "syn 2.0.89",
 ]
 
diff --git a/bpb/Cargo.toml b/bpb/Cargo.toml
index 113bd81..8b78e0b 100644
--- a/bpb/Cargo.toml
+++ b/bpb/Cargo.toml
@@ -14,7 +14,7 @@ sha2 = "0.7.1"
 serde_derive = "1.0.215"
 serde = "1.0.215"
 hex = "0.3.2"
-failure = "0.1.1"
+failure = "0.1.8"
 lazy_static = "1.5.0"
 
 [dependencies.pbp]
diff --git a/pbp/Cargo.toml b/pbp/Cargo.toml
index ceeb249..2b09d66 100644
--- a/pbp/Cargo.toml
+++ b/pbp/Cargo.toml
@@ -14,7 +14,7 @@ byteorder = "1.1.0"
 digest = "0.7.0"
 sha1 = "0.2.0"
 typenum = "1.9.0"
-failure = "0.1.1"
+failure = "0.1.8"
 bitflags = "1.3.2"
 
 [dependencies.ed25519-dalek]
@@ -25,5 +25,5 @@ optional = true
 dalek = ["ed25519-dalek"]
 
 [dev-dependencies]
-rand = "0.7.3"
+rand = "0.8.5"
 sha2 = "0.7.1"