diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index db81ed6f..2d8b3c66 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [1.57.0, 1.67.0, stable, beta, nightly]
+        rust: [1.63.0, 1.67.0, stable, beta, nightly]
         exclude:
           - os: macos-latest
             rust: 1.67.0
@@ -37,9 +37,9 @@ jobs:
           toolchain: ${{ matrix.rust }}
       # Add toolchain for no_std tests
       - run: rustup toolchain install nightly
-      - name: Downgrade idna_adapter on Rust 1.57.0
+      - name: Downgrade idna_adapter on Rust 1.63.0
         if: |
-          matrix.rust == '1.57.0'
+          matrix.rust == '1.63.0'
         run: cargo update -p idna_adapter --precise 1.1.0
       - name: Add `aarch64-unknown-none` toolchain for `no_std` tests
         if: |
@@ -58,7 +58,7 @@ jobs:
       - name: Run debugger_visualizer tests
         if: |
           matrix.os == 'windows-latest' &&
-          matrix.rust != '1.57.0' &&
+          matrix.rust != '1.63.0' &&
           matrix.rust != '1.67.0'
         run: cargo test --test debugger_visualizer --features "url/debugger_visualizer,url_debug_tests/debugger_visualizer" -- --test-threads=1 || echo "debugger test failed"
         continue-on-error: true # Fails on GH actions, but not locally.
diff --git a/idna/Cargo.toml b/idna/Cargo.toml
index 60024732..9db96d48 100644
--- a/idna/Cargo.toml
+++ b/idna/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/servo/rust-url/"
 license = "MIT OR Apache-2.0"
 autotests = false
 edition = "2018"
-rust-version = "1.57" # For panic in const context
+rust-version = "1.63" # For panic in const context
 
 [lib]
 doctest = false
diff --git a/url/Cargo.toml b/url/Cargo.toml
index 6f5532af..cdc13683 100644
--- a/url/Cargo.toml
+++ b/url/Cargo.toml
@@ -14,7 +14,7 @@ categories = ["parser-implementations", "web-programming", "encoding", "no-std"]
 license = "MIT OR Apache-2.0"
 include = ["src/**/*", "LICENSE-*", "README.md", "tests/**"]
 edition = "2018"
-rust-version = "1.57" # From idna
+rust-version = "1.63" # From idna
 
 [dev-dependencies]
 serde = { version = "1.0", features = ["derive"] }