diff --git a/Cargo.lock b/Cargo.lock
index 9e66c8f..d5a126b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2287,9 +2287,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.56"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/flake.lock b/flake.lock
index c9f42ef..12bf0f7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -23,11 +23,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1679567394,
-        "narHash": "sha256-ZvLuzPeARDLiQUt6zSZFGOs+HZmE+3g4QURc8mkBsfM=",
+        "lastModified": 1690373729,
+        "narHash": "sha256-e136hTT7LqQ2QjOTZQMW+jnsevWwBpMj78u6FRUsH9I=",
         "owner": "nix-community",
         "repo": "naersk",
-        "rev": "88cd22380154a2c36799fe8098888f0f59861a15",
+        "rev": "d9a33d69a9c421d64c8d925428864e93be895dcc",
         "type": "github"
       },
       "original": {
@@ -39,11 +39,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1683020768,
-        "narHash": "sha256-ZyZl6k9NWS5QPwD3NoAVz/eSgodQDvl+y+fu8MVbrHc=",
+        "lastModified": 1691003216,
+        "narHash": "sha256-Qq/MPkhS12Bl0X060pPvX3v9ac3f2rRQfHjjozPh/Qs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "44f30edf5661d86fb3a95841c35127f3d0ea8b0f",
+        "rev": "4a56ce9727a0c5478a836a0d8a8f641c5b9a3d5f",
         "type": "github"
       },
       "original": {
@@ -53,11 +53,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1683103914,
-        "narHash": "sha256-Mbrst3sLaiL55eOlZOEL8kB+XTWffaQVfcI03YWiryg=",
+        "lastModified": 1688392541,
+        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "54495a4eafe99c537695a87fe04cb50bf17e651d",
+        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
         "type": "github"
       },
       "original": {
@@ -97,11 +97,11 @@
         "nixpkgs": "nixpkgs_3"
       },
       "locked": {
-        "lastModified": 1683512408,
-        "narHash": "sha256-QMJGp/37En+d5YocJuSU89GL14bBYkIJQ6mqhRfqkkc=",
+        "lastModified": 1691029059,
+        "narHash": "sha256-QwVeE9YTgH3LmL7yw2V/hgswL6yorIvYSp4YGI8lZYM=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "75b07756c3feb22cf230e75fb064c1b4c725b9bc",
+        "rev": "99df4908445be37ddb2d332580365fce512a7dcf",
         "type": "github"
       },
       "original": {
@@ -145,11 +145,11 @@
         "systems": "systems_2"
       },
       "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 4b25b8b..ebd487e 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2023-05-08"
+channel = "nightly-2023-07-23"
 components = [ "rustfmt", "rustc-dev", "clippy", "cargo" ]
 targets = [ "x86_64-unknown-linux-musl" ]