diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 11c951a9..27de644f 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -9,9 +9,9 @@ on:
 env:
   CARGO_TERM_COLOR: always
   # Pinned toolchain for linting and benchmarks
-  ACTIONS_LINTS_TOOLCHAIN: 1.65.0
+  ACTIONS_LINTS_TOOLCHAIN: 1.70.0
   # Minimum supported Rust version (MSRV)
-  ACTION_MSRV_TOOLCHAIN: 1.65.0
+  ACTION_MSRV_TOOLCHAIN: 1.70.0
   EXTRA_FEATURES: "protobuf push process"
 
 jobs:
diff --git a/Cargo.toml b/Cargo.toml
index 5cf82f25..0ed1b828 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,10 +33,10 @@ reqwest = { version = "^0.11", features = ["blocking"], optional = true }
 thiserror = "^1.0"
 
 [target.'cfg(target_os = "linux")'.dependencies]
-procfs = { version = "^0.14", optional = true, default-features = false }
+procfs = { version = "^0.16", optional = true, default-features = false }
 
 [dev-dependencies]
-criterion = "0.4"
+criterion = "0.5"
 getopts = "^0.2"
 hyper = { version = "^0.14", features = ["server", "http1", "tcp"] }
 tokio = { version = "^1.0", features = ["macros", "rt-multi-thread"] }
diff --git a/static-metric/Cargo.toml b/static-metric/Cargo.toml
index 7827b183..88e0e735 100644
--- a/static-metric/Cargo.toml
+++ b/static-metric/Cargo.toml
@@ -13,13 +13,13 @@ edition = "2018"
 proc-macro = true
 
 [dependencies]
-syn = { version = "1.0", features = ["full", "extra-traits"] }
+syn = { version = "2.0", features = ["full", "extra-traits"] }
 proc-macro2 = "1.0"
 quote = "1.0"
 lazy_static = "1.4"
 
 [dev-dependencies]
-criterion = "0.4"
+criterion = "0.5"
 prometheus = { path = "../" }
 
 [features]