diff --git a/.github/actions/setup-tools/action.yml b/.github/actions/setup-tools/action.yml
index 08b497d2..6a711d41 100644
--- a/.github/actions/setup-tools/action.yml
+++ b/.github/actions/setup-tools/action.yml
@@ -37,7 +37,7 @@ runs:
 
     - name: Install Pulumi CLI
       if: inputs.tools == 'all' || contains(inputs.tools, 'pulumicli')
-      uses: pulumi/actions@v5
+      uses: pulumi/actions@c7fad9e2f0b79653172b36538b8b34b3c0291952 # v6
       with:
         pulumi-version: "dev"
 
diff --git a/.github/workflows/prerequisites.yml b/.github/workflows/prerequisites.yml
index 7f678b73..ede61093 100644
--- a/.github/workflows/prerequisites.yml
+++ b/.github/workflows/prerequisites.yml
@@ -48,7 +48,7 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         persist-credentials: false
-    - uses: pulumi/provider-version-action@v1.5.3
+    - uses: pulumi/provider-version-action@0391d47b9b0d865d33dd0a295b1fcf9f7021dd4c # v1.5.3
       id: provider-version
       with:
         set-env: 'PROVIDER_VERSION'
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3f43642c..d27779b2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -121,7 +121,7 @@ jobs:
       with:
         tools: pulumictl, pulumicli, nodejs, python, dotnet, go, java
     - name: Publish SDKs
-      uses: pulumi/pulumi-package-publisher@v0.0.20
+      uses: pulumi/pulumi-package-publisher@1c0359ba74243cf6651efacfd839c751d8ff87e2 # v0.0.20
       with:
         sdk: all
         version: ${{ inputs.version }}
diff --git a/.github/workflows/upgrade-bridge.yml b/.github/workflows/upgrade-bridge.yml
index df61ac46..bfcea9e1 100644
--- a/.github/workflows/upgrade-bridge.yml
+++ b/.github/workflows/upgrade-bridge.yml
@@ -74,7 +74,7 @@ jobs:
         tools: pulumictl, pulumicli, nodejs, python, dotnet, go, java
     - name: Call upgrade provider action
       if: github.event_name == 'workflow_dispatch'
-      uses: pulumi/pulumi-upgrade-provider-action@v0.0.12
+      uses: pulumi/pulumi-upgrade-provider-action@a1d9f03fbfd923f787427c1d9e99c2356711d483 # v0.0.13
       with:
         kind: ${{ inputs.kind }}
         email: bot@pulumi.com
@@ -87,7 +87,7 @@ jobs:
         pr-title-prefix: ${{ inputs.pr-title-prefix }}
     - name: Call upgrade provider action
       if: github.event_name == 'repository_dispatch'
-      uses: pulumi/pulumi-upgrade-provider-action@v0.0.12
+      uses: pulumi/pulumi-upgrade-provider-action@a1d9f03fbfd923f787427c1d9e99c2356711d483 # v0.0.13
       with:
         kind: ${{ github.event.client_payload.kind || 'bridge' }}
         email: bot@pulumi.com