diff --git a/.github/workflows/code_coverage.yml b/.github/workflows/code_coverage.yml
index dd19eb3f..eef15b7e 100644
--- a/.github/workflows/code_coverage.yml
+++ b/.github/workflows/code_coverage.yml
@@ -2,6 +2,8 @@ on: [push, pull_request]
 
 name: Code Coverage
 
+permissions: {}
+
 jobs:
   Codecov:
     name: Code Coverage
diff --git a/.github/workflows/cont_integration.yml b/.github/workflows/cont_integration.yml
index 1bd20afa..7b3bb715 100644
--- a/.github/workflows/cont_integration.yml
+++ b/.github/workflows/cont_integration.yml
@@ -2,6 +2,8 @@ on: [push, pull_request]
 
 name: CI
 
+permissions: {}
+
 jobs:
 
   prepare:
diff --git a/.github/workflows/cron-update-rust.yml b/.github/workflows/cron-update-rust.yml
index 2fc212eb..1264203d 100644
--- a/.github/workflows/cron-update-rust.yml
+++ b/.github/workflows/cron-update-rust.yml
@@ -1,4 +1,7 @@
 name: Update rust version
+
+permissions: {}
+
 on:
   schedule:
     - cron: "0 0 15 * *" # At 00:00 on day-of-month 15.
diff --git a/.github/workflows/zizmor.yml b/.github/workflows/zizmor.yml
new file mode 100644
index 00000000..0c2aa080
--- /dev/null
+++ b/.github/workflows/zizmor.yml
@@ -0,0 +1,35 @@
+name: Zizmor Actions Analysis
+
+on:
+  push:
+    branches: ["master"]
+  pull_request:
+    branches: ["**"]
+
+jobs:
+  zizmor:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: Rust Cache
+        uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6
+
+      - name: Install zizmor
+        run: cargo install zizmor --locked --version 1.6.0
+
+      - name: Run zizmor 🌈
+        run: zizmor --format sarif . > results.sarif
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload SARIF file
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif
+          category: zizmor
\ No newline at end of file
diff --git a/wallet/src/wallet/signer.rs b/wallet/src/wallet/signer.rs
index e08a4341..f9a1b741 100644
--- a/wallet/src/wallet/signer.rs
+++ b/wallet/src/wallet/signer.rs
@@ -577,7 +577,7 @@ fn sign_psbt_schnorr(
     let keypair = match leaf_hash {
         None => keypair
             .tap_tweak(secp, psbt_input.tap_merkle_root)
-            .to_inner(),
+            .to_keypair(),
         Some(_) => keypair, // no tweak for script spend
     };
 
diff --git a/wallet/tests/psbt.rs b/wallet/tests/psbt.rs
index a4d17493..d34f7ec4 100644
--- a/wallet/tests/psbt.rs
+++ b/wallet/tests/psbt.rs
@@ -214,7 +214,7 @@ fn test_psbt_multiple_internalkey_signers() {
     let message = Message::from(sighash);
 
     // add tweak. this was taken from `signer::sign_psbt_schnorr`
-    let keypair = keypair.tap_tweak(&secp, None).to_inner();
+    let keypair = keypair.tap_tweak(&secp, None).to_keypair();
     let (xonlykey, _parity) = XOnlyPublicKey::from_keypair(&keypair);
 
     // Must verify if we used the correct key to sign