diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 367bf6f..0de3300 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,14 +8,11 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.54.0
-          - 1.55.0
-          - 1.56.0
-          - 1.57.0
-          - 1.58.1
           - 1.59.0
           - 1.60.0
           - 1.61.0
+          - 1.62.1
+          - 1.63.0
           - stable
           - beta
           - nightly
diff --git a/README.md b/README.md
index d7ad7db..fa8c3d2 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ man =(curl -sSf "https://raw.githubusercontent.com/breard-r/acmed/main/man/en/ta
 
 ## Build from source
 
-In order to compile ACMEd, you will need the [Rust](https://www.rust-lang.org/) compiler and its package manager, Cargo. The minimal required Rust version is 1.54, although it is recommended to use the latest stable one.
+In order to compile ACMEd, you will need the [Rust](https://www.rust-lang.org/) compiler and its package manager, Cargo. The minimal required Rust version is 1.59, although it is recommended to use the latest stable one.
 
 ACMEd depends OpenSSL 1.1.0 or higher.