diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b9ca8c..1c13cbe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,11 +17,27 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Install Rust (stable)
-        uses: dtolnay/rust-toolchain@stable
-
-      - name: Cache Cargo
-        uses: Swatinem/rust-cache@v2
+      # Force correct Rust version
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: 1.81.0
+          components: rustfmt, clippy
+          override: true
+
+      # Verify rustc version
+      - name: Check rustc version
+        run: rustc --version
+
+      - name: Cache Cargo registry & target
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: cargo-cache-${{ runner.os }}-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Format check
         run: cargo fmt --all -- --check
@@ -29,5 +45,5 @@ jobs:
       - name: Clippy (deny warnings)
         run: cargo clippy --all-targets --all-features -- -D warnings
 
-      - name: Unit tests
+      - name: Run tests
         run: cargo test --all --all-features --verbose
diff --git a/.github/workflows/msrv.yml b/.github/workflows/msrv.yml
new file mode 100644
index 0000000..e25bd6d
--- /dev/null
+++ b/.github/workflows/msrv.yml
@@ -0,0 +1,29 @@
+name: MSRV
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - "*"
+  pull_request:
+
+jobs:
+  msrv:
+    name: Check MSRV
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Rust (MSRV)
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: 1.80.1 # ← choose your MSRV
+
+      - name: Cargo check
+        run: cargo check --all-features
+
+      - name: Cargo test
+        run: cargo test --all-features
diff --git a/Cargo.toml b/Cargo.toml
index b8d8a0e..0366d83 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,11 +9,10 @@ documentation = "http://manute.github.io/rawsql/rawsql/index.html"
 readme = "README.md"
 keywords = ["database", "sql"]
 
-
 [lib]
 name = "rawsql"
 path = "src/lib.rs"
 doctest = false
 
 [dev-dependencies]
-postgres = "0.19.2"
+postgres = "0.19.12"
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..f19c7df
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.81.0"
+components = ["rustfmt", "clippy"]