diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 36e2a36..9c902e6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,9 +8,10 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.70.0
-          - 1.71.1
-          - 1.72.1
+          - 1.74.1
+          - 1.75.0
+          - 1.76.0
+          - 1.77.0
           - stable
           - beta
           - nightly
diff --git a/README.md b/README.md
index 9b4df96..19ca7a3 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Sub-Address KEy (SAKE) filter
 
 [![Build Status](https://github.com/breard-r/opensmtpd-filter-sake/actions/workflows/ci.yml/badge.svg)](https://github.com/breard-r/opensmtpd-filter-sake/actions/workflows/ci.yml)
-![Minimal rustc version](https://img.shields.io/badge/rustc-1.70.0+-lightgray.svg)
+![Minimal rustc version](https://img.shields.io/badge/rustc-1.74.1+-lightgray.svg)
 ![License MIT OR Apache 2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue)
 
 Sub-address key filter for OpenSMTPD.