diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a573030..c85326b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         rust:
           - stable
-          - 1.65.0
+          - 1.70.0
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
@@ -39,7 +39,7 @@ jobs:
       matrix:
         rust:
           - stable
-          - 1.65.0
+          - 1.70.0
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
diff --git a/.gitignore b/.gitignore
index 0333ac1..7a1777c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 .envrc
 *.log
 *.pcap
+.DS_Store
diff --git a/Dockerfile b/Dockerfile
index 1765243..59ad657 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.65.0 as cargo-build
+FROM rust:1.70.0 as cargo-build
 
 WORKDIR /usr/src/onetun
 COPY Cargo.toml Cargo.toml
diff --git a/README.md b/README.md
index c4d906e..b7e14fa 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ For example,
 
 ## Download
 
-onetun is available to install from [crates.io](https://crates.io/crates/onetun) with Rust ≥1.65.0:
+onetun is available to install from [crates.io](https://crates.io/crates/onetun) with Rust ≥1.70.0:
 
 ```shell
 cargo install onetun
@@ -37,7 +37,7 @@ docker run --rm --name onetun --user 1000 -p 8080:8080 aramperes/onetun \
     0.0.0.0:8080:192.168.4.2:8080 [...options...]
 ```
 
-You can also build onetun locally, using Rust ≥1.65.0:
+You can also build onetun locally, using Rust ≥1.70.0:
 
 ```shell
 git clone https://github.com/aramperes/onetun && cd onetun