diff --git a/Cargo.toml b/Cargo.toml
index 5429956b..695e523e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,9 +19,10 @@ features = ["nightly"]
 
 [features]
 default = ["protobuf"]
-gen = ["protobuf-codegen-pure"]
+gen = ["prost-build"]
 nightly = ["libc"]
 process = ["libc", "procfs"]
+protobuf = ["prost", "prost-types"]
 push = ["reqwest", "libc", "protobuf"]
 
 [dependencies]
@@ -30,7 +31,8 @@ fnv = "^1.0"
 lazy_static = "^1.4"
 libc = { version = "^0.2", optional = true }
 parking_lot = "^0.11"
-protobuf = { version = "^2.0", optional = true }
+prost = { version = "^0.7", optional = true }
+prost-types = { version = "^0.7", optional = true }
 regex = "^1.3"
 reqwest = { version = "^0.11", features = ["blocking"], optional = true }
 thiserror = "^1.0"
@@ -45,6 +47,7 @@ hyper = { version = "^0.14", features = ["server", "http1", "tcp"] }
 tokio = { version = "^1.0", features = ["macros", "rt-multi-thread"] }
 
 [build-dependencies]
+prost-build = { versopm = "^0.7", optional = true }
 protobuf-codegen-pure = { version = "^2.0", optional = true }
 
 [workspace]
diff --git a/build.rs b/build.rs
index b556f0b3..29d083ea 100644
--- a/build.rs
+++ b/build.rs
@@ -2,13 +2,12 @@
 
 #[cfg(feature = "gen")]
 fn generate_protobuf_binding_file() {
-    protobuf_codegen_pure::run(protobuf_codegen_pure::Args {
-        out_dir: "proto",
-        input: &["proto/proto_model.proto"],
-        includes: &["proto"],
-        ..Default::default()
-    })
-    .unwrap();
+    use prost_build::Config;
+    use std::path::Path;
+
+    let mut cfg = Config::new();
+    cfg.out_dir(Path::new("proto"));
+    cfg.compile_protos(&["proto/proto_model.proto"], &["proto"]).unwrap();
 }
 
 #[cfg(not(feature = "gen"))]
diff --git a/proto/io.prometheus.client.rs b/proto/io.prometheus.client.rs
new file mode 100644
index 00000000..dff1a5e5
--- /dev/null
+++ b/proto/io.prometheus.client.rs
@@ -0,0 +1,94 @@
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct LabelPair {
+    #[prost(string, optional, tag="1")]
+    pub name: ::core::option::Option<::prost::alloc::string::String>,
+    #[prost(string, optional, tag="2")]
+    pub value: ::core::option::Option<::prost::alloc::string::String>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Gauge {
+    #[prost(double, optional, tag="1")]
+    pub value: ::core::option::Option<f64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Counter {
+    #[prost(double, optional, tag="1")]
+    pub value: ::core::option::Option<f64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Quantile {
+    #[prost(double, optional, tag="1")]
+    pub quantile: ::core::option::Option<f64>,
+    #[prost(double, optional, tag="2")]
+    pub value: ::core::option::Option<f64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Summary {
+    #[prost(uint64, optional, tag="1")]
+    pub sample_count: ::core::option::Option<u64>,
+    #[prost(double, optional, tag="2")]
+    pub sample_sum: ::core::option::Option<f64>,
+    #[prost(message, repeated, tag="3")]
+    pub quantile: ::prost::alloc::vec::Vec<Quantile>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Untyped {
+    #[prost(double, optional, tag="1")]
+    pub value: ::core::option::Option<f64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Histogram {
+    #[prost(uint64, optional, tag="1")]
+    pub sample_count: ::core::option::Option<u64>,
+    #[prost(double, optional, tag="2")]
+    pub sample_sum: ::core::option::Option<f64>,
+    /// Ordered in increasing order of upper_bound, +Inf bucket is optional.
+    #[prost(message, repeated, tag="3")]
+    pub bucket: ::prost::alloc::vec::Vec<Bucket>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Bucket {
+    /// Cumulative in increasing order.
+    #[prost(uint64, optional, tag="1")]
+    pub cumulative_count: ::core::option::Option<u64>,
+    /// Inclusive.
+    #[prost(double, optional, tag="2")]
+    pub upper_bound: ::core::option::Option<f64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct Metric {
+    #[prost(message, repeated, tag="1")]
+    pub label: ::prost::alloc::vec::Vec<LabelPair>,
+    #[prost(message, optional, tag="2")]
+    pub gauge: ::core::option::Option<Gauge>,
+    #[prost(message, optional, tag="3")]
+    pub counter: ::core::option::Option<Counter>,
+    #[prost(message, optional, tag="4")]
+    pub summary: ::core::option::Option<Summary>,
+    #[prost(message, optional, tag="5")]
+    pub untyped: ::core::option::Option<Untyped>,
+    #[prost(message, optional, tag="7")]
+    pub histogram: ::core::option::Option<Histogram>,
+    #[prost(int64, optional, tag="6")]
+    pub timestamp_ms: ::core::option::Option<i64>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct MetricFamily {
+    #[prost(string, optional, tag="1")]
+    pub name: ::core::option::Option<::prost::alloc::string::String>,
+    #[prost(string, optional, tag="2")]
+    pub help: ::core::option::Option<::prost::alloc::string::String>,
+    #[prost(enumeration="MetricType", optional, tag="3")]
+    pub r#type: ::core::option::Option<i32>,
+    #[prost(message, repeated, tag="4")]
+    pub metric: ::prost::alloc::vec::Vec<Metric>,
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, PartialOrd, Ord, ::prost::Enumeration)]
+#[repr(i32)]
+pub enum MetricType {
+    Counter = 0,
+    Gauge = 1,
+    Summary = 2,
+    Untyped = 3,
+    Histogram = 4,
+}