diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc8c481..65b1cd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,3 +37,19 @@ jobs:
 
       - name: Run cargo test
         run: cargo test --locked
+
+  msrv:
+    name: MSRV Check
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v5
+
+      - name: Install minimum supported Rust version
+        uses: dtolnay/rust-toolchain@1.85
+
+      - name: Restore Cargo cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Run cargo check
+        run: cargo check --locked --all-targets
diff --git a/Cargo.toml b/Cargo.toml
index 8105ee7..b72918f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,7 @@ name = "dagger"
 version = "0.2.0"
 edition = "2024"
 license = "GPL-3.0-or-later"
+rust-version = "1.85"
 
 [[bin]]
 name = "dgr"