diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2ed491b..559b611 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.59.0
+          - 1.63.0
           - stable
     steps:
     - name: Checkout
diff --git a/Cargo.toml b/Cargo.toml
index 3ef007d..35fa26c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ repository = "https://github.com/RazrFalcon/ttf-parser"
 documentation = "https://docs.rs/ttf-parser/"
 readme = "README.md"
 edition = "2018"
+rust-version = "1.63.0"
 exclude = ["benches/**"]
 
 [dependencies]