diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0cd57d5..a5d3f4f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -67,7 +67,7 @@ jobs:
           - os: ubuntu-latest
             # MSRV. Not considered breaking when this has to be bumped.
             # But update `rust-version` in `Cargo.toml`
-            rust: 1.77.0
+            rust: 1.80.0
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
diff --git a/Cargo.toml b/Cargo.toml
index 3898057..8e5447f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 description = "Tunnel UDP traffic inside a TCP stream. Each datagram is prefixed with a 16 bit unsigned integer containing the length"
 repository = "https://github.com/mullvad/udp-over-tcp"
 edition = "2021"
-rust-version = "1.77.0"
+rust-version = "1.80.0"
 publish = false
 
 [[bin]]