diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 38f3f9a3..8837e025 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -66,7 +66,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Install dependencies
         run: mise run install
@@ -89,7 +89,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Install dependencies
         run: mise run install
@@ -160,7 +160,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Download the native distributions
         uses: actions/download-artifact@v7
@@ -196,7 +196,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -219,7 +219,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -335,7 +335,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up mise
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
 
       - name: Build packages
         run: mise run build
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 90bc3040..f2493d1a 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -60,7 +60,7 @@ jobs:
         with:
           node-version: '24'
       - uses: astral-sh/setup-uv@v7
-      - uses: jdx/mise-action@v3
+      - uses: jdx/mise-action@v5
         with:
           install: false
       - name: Install the qualified Python pair
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0799af8d..55f359ba 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v7
-      - uses: jdx/mise-action@v3
+      - uses: jdx/mise-action@v5
         with:
           install_args: rust python
       - uses: actions/cache@v5
@@ -196,7 +196,7 @@ jobs:
       # CLI releases exercise the package-manager path with their exact wheels.
       - name: Set up mise without installing development toolchains
         if: ${{ !matrix.reuse || startsWith(github.ref, 'refs/tags/python-v') }}
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
         with:
           version: '2026.10.22'
           install: false
@@ -273,7 +273,7 @@ jobs:
           !matrix.reuse &&
           (github.event_name == 'workflow_dispatch' ||
            startsWith(github.ref, 'refs/tags/extension/python/v'))
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
         with:
           install_args: rust python
 
@@ -436,7 +436,7 @@ jobs:
       # Source-pinned host assurance belongs to the existing manual/release
       # candidate consumer. Build once; exercise the downloaded guest bytes.
       - name: Set up the pinned Rust host toolchain
-        uses: jdx/mise-action@v3
+        uses: jdx/mise-action@v5
         with:
           install_args: rust python