diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 27468dde..67671b44 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
     outputs:
       native: ${{ steps.paths.outputs.native }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           fetch-depth: 0
       - id: paths
@@ -60,11 +60,11 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: repo-checks
       - name: Format
@@ -83,11 +83,11 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: native-clippy
       - run: cargo clippy --workspace --all-targets --profile ci --locked -- -D warnings
@@ -99,9 +99,9 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 90
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: native-tests
       - name: Compile tests
@@ -136,11 +136,11 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: wasm32-unknown-unknown
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: wasm
       - run: cargo xtask wasm
@@ -151,9 +151,9 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Check out craft-fonts
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: storytold/craft-fonts
           ref: ${{ env.CRAFT_FONTS_REF }}
@@ -161,7 +161,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: riscv64gc-unknown-linux-gnu
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: riscv64
       - name: Install cross-compilation dependencies
diff --git a/.github/workflows/packaging-lint.yml b/.github/workflows/packaging-lint.yml
index 8a53275d..fd92b969 100644
--- a/.github/workflows/packaging-lint.yml
+++ b/.github/workflows/packaging-lint.yml
@@ -24,7 +24,7 @@ jobs:
     env:
       ACTIONLINT_VERSION: 1.7.12
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install tools
         run: |
           sudo apt-get update
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index 6f57d857..80a256b6 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -28,11 +28,11 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: wasm32-unknown-unknown
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
       - name: Install mdbook and trunk
         run: |
           mkdir -p "$HOME/.local/bin"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5324df53..b3383bd8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -43,7 +43,7 @@ jobs:
       date: ${{ steps.v.outputs.date }}
       prerelease: ${{ steps.v.outputs.prerelease }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - id: v
         name: Resolve version
         env:
@@ -67,16 +67,16 @@ jobs:
   icons:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: release-icons
       - run: cargo build --release --locked -p solvecraft-cli
       - run: |
           . packaging/env.sh
           make_icons target/release/solvecraft-cli icons
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: icons
           path: icons
@@ -98,7 +98,7 @@ jobs:
       SOLVECRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
       NFPM_VERSION: 2.47.0
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install packaging tools
         run: |
           sudo apt-get update
@@ -107,7 +107,7 @@ jobs:
             "https://github.com/goreleaser/nfpm/releases/download/v${NFPM_VERSION}/nfpm_${NFPM_VERSION}_${{ matrix.deb }}.deb"
           sudo dpkg -i "$RUNNER_TEMP/nfpm.deb"
       - uses: dtolnay/rust-toolchain@stable
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: release-linux-${{ matrix.arch }}
       - name: Build and package (AppImage, deb, rpm, tar.gz)
@@ -126,7 +126,7 @@ jobs:
             "$appimage" --appimage-updateinformation | grep -F 'gh-releases-zsync|'
             test -s "$appimage.zsync"
           done
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-linux-${{ matrix.arch }}
           path: dist/release/*
@@ -148,8 +148,8 @@ jobs:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
       SOLVECRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
         with:
           name: release-linux-${{ matrix.arch }}
           path: dist/linux
@@ -161,7 +161,7 @@ jobs:
           sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
       - name: Build the Flatpak bundle
         run: packaging/linux/flatpak-bundle.sh "dist/linux/solvecraft-$SOLVECRAFT_VERSION-linux-${{ matrix.arch }}.tar.gz"
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-flatpak-${{ matrix.arch }}
           path: dist/release/*.flatpak
@@ -177,9 +177,9 @@ jobs:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
       SOLVECRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Check out craft-fonts
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: storytold/craft-fonts
           ref: ${{ env.CRAFT_FONTS_REF }}
@@ -218,7 +218,7 @@ jobs:
           export DEB_ARCH=riscv64
           # We skip nfpm (deb/rpm) and AppImage for now on riscv64
           bash packaging/linux/package.sh --formats "tar"
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-linux-riscv64
           path: dist/release/*.tar.gz
@@ -233,7 +233,7 @@ jobs:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
       SOLVECRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Build and package in a FreeBSD VM (tar.gz)
         # vmactions/freebsd-vm v1.5.9, pinned by commit (it runs our build).
         uses: vmactions/freebsd-vm@c46abacb49f09938ca4e1702d15d836285d694cc
@@ -257,7 +257,7 @@ jobs:
             bash packaging/freebsd/package.sh
             tar -tzf dist/release/solvecraft-*-freebsd-x86_64.tar.gz \
               | grep -E '/bin/solvecraft$|/bin/solvecraft-cli$|/share/applications/ai\.storyteller\.solvecraft\.desktop$|/share/doc/solvecraft/THIRD-PARTY-LICENSES\.txt$'
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-freebsd-x86_64
           path: dist/release/*
@@ -271,16 +271,16 @@ jobs:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
       SOLVECRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: aarch64-apple-darwin, x86_64-apple-darwin
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: release-macos-universal
       - name: Build and package (dmg, CLI zip; the dmg is mounted and checked)
         run: packaging/macos/package.sh --arch universal
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-macos
           path: dist/release/*
@@ -301,15 +301,15 @@ jobs:
     env:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
         with:
           name: icons
           path: icons
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.target }}
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: release-windows-${{ matrix.arch }}
       - name: Install WiX
@@ -322,7 +322,7 @@ jobs:
         env:
           SOLVECRAFT_ICONS: ${{ github.workspace }}/icons
         run: ./packaging/windows/package.ps1 -Arch ${{ matrix.arch }}
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-windows-${{ matrix.arch }}
           path: dist/release/*
@@ -336,11 +336,11 @@ jobs:
       SOLVECRAFT_VERSION: ${{ needs.version.outputs.version }}
       TRUNK_VERSION: 0.21.14
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: dtolnay/rust-toolchain@stable
         with:
           targets: wasm32-unknown-unknown
-      - uses: Swatinem/rust-cache@v2
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2.9.2
         with:
           key: release-web
       - name: Install trunk
@@ -349,7 +349,7 @@ jobs:
             | tar -xz -C "$HOME/.cargo/bin" trunk
       - name: Build and zip
         run: packaging/web/package.sh
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-web
           path: dist/release/*
@@ -367,8 +367,8 @@ jobs:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       GH_REPO: ${{ github.repository }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
         with:
           pattern: release-*
           path: artifacts
@@ -418,7 +418,7 @@ jobs:
         if: github.event_name == 'workflow_dispatch' && !inputs.draft
         run: cp notes.md artifacts/release-notes.md
       - if: github.event_name == 'workflow_dispatch' && !inputs.draft
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
         with:
           name: release-assets
           path: artifacts/*