diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dc84a3976..fd9a38bfa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -5,6 +5,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
       - name: Build Container
         run: make docker
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index aabe9c5d4..e61df4861 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,12 +7,12 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
         with:
           go-version: 1.20.x
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@639cd343e1d3b897ff35927a75193d57cfcba299 # v3.6.0
         with:
           args: --timeout 61m0s --verbose
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index aec1418e7..a64e3b739 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,8 +10,8 @@ jobs:
       release-version: ${{ steps.semantic.outputs.release-version }}
       new-release-published: ${{ steps.semantic.outputs.new-release-published }}
     steps:
-      - uses: actions/checkout@v3
-      - uses: codfish/semantic-release-action@v1
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: codfish/semantic-release-action@cbd853afe12037afb1306caca9d6b1ab6a58cf2a # v1.10.0
         id: semantic
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -19,12 +19,12 @@ jobs:
     runs-on: ubuntu-latest
     needs: semantic-release
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
         with:
           go-version: v1.20.x
-      - uses: actions/cache@v2
+      - uses: actions/cache@8492260343ad570701412c2f464a5877dc76bace # v2
         with:
           path: |
             ~/go/pkg/mod
@@ -37,7 +37,7 @@ jobs:
         env:
           VERSION: v${{ needs.semantic-release.outputs.release-version }}
       - name: Upload binaries to release
-        uses: svenstaro/upload-release-action@v2
+        uses: svenstaro/upload-release-action@1beeb572c19a9242f4361f4cee78f8e0d9aec5df # v2
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ./.release/*
@@ -48,14 +48,14 @@ jobs:
     needs: semantic-release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - name: Set version
         # Always use git tags as semantic release can fail due to rate limit
         run: |
           git fetch --prune --unshallow
           echo "RELEASE_VERSION=$(git describe --abbrev=0 --tags | sed -e 's/^v//')" >> $GITHUB_ENV
       - name: Publish to Registry
-        uses: elgohr/Publish-Docker-Github-Action@v5
+        uses: elgohr/Publish-Docker-Github-Action@43dc228e327224b2eda11c8883232afd5b34943b # v5
         with:
           name: flanksource/incident-commander
           username: ${{ secrets.DOCKER_USERNAME }}
@@ -68,26 +68,26 @@ jobs:
     runs-on: ubuntu-latest
     needs: [semantic-release, docker]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - name: Set version
         # Always use git tags as semantic release can fail due to rate limit
         run: |
           git fetch --prune --unshallow
           echo "RELEASE_VERSION=$(git describe --abbrev=0 --tags | sed -e 's/^v//')" >> $GITHUB_ENV
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           repository: "${{ github.repository_owner }}/mission-control-chart"
           token: ${{ secrets.FLANKBOT }}
           path: ./incident-commander-chart
       - name: Update image tags
-        uses: mikefarah/yq@master
+        uses: mikefarah/yq@9b4082919bf50bb6be38742adf46f888e9f5683a # master
         with:
           cmd: yq -i e '.image.tag = "v${{ env.RELEASE_VERSION }}"' incident-commander-chart/chart/values.yaml
       - name: Update CRDs
         run: |
           cp config/crds/* incident-commander-chart/chart/crds/
       - name: Push changes to chart repo
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@3ea6ae190baf489ba007f7c92608f33ce20ef04a # v4.16.0
         with:
           commit_message: "chore: update incident-commander image version to ${{ env.RELEASE_VERSION }}"
           repository: ./incident-commander-chart
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 39e178159..a4b0c839c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,12 +7,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
         with:
           go-version: 1.20.x
       - name: Checkout code
-        uses: actions/checkout@v2
-      - uses: actions/cache@v2
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
+      - uses: actions/cache@8492260343ad570701412c2f464a5877dc76bace # v2
         with:
           path: |
             ~/go/pkg/mod
@@ -24,7 +24,7 @@ jobs:
       - name: Test
         run: make test
       - name: Publish Unit Test Results
-        uses: EnricoMi/publish-unit-test-result-action@v1
+        uses: EnricoMi/publish-unit-test-result-action@b9f6c61d965bcaa18acc02d6daf706373a448f02 # v1.40
         if: always() && github.event.repository.fork == 'false'
         with:
           files: test/test-results.xml
diff --git a/Dockerfile b/Dockerfile
index e1dae41f5..191a79844 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20 as builder
+FROM golang:1.20@sha256:bc5f0b5e43282627279fe5262ae275fecb3d2eae3b33977a7fd200c7a760d6f1 as builder
 WORKDIR /app
 
 ARG VERSION
@@ -8,7 +8,7 @@ RUN go mod download
 COPY ./ ./
 RUN make build
 
-FROM ubuntu:jammy
+FROM ubuntu:jammy@sha256:0bced47fffa3361afa981854fcabcd4577cd43cebbb808cea2b1f33a3dd7f508
 WORKDIR /app
 
 COPY --from=builder /app/.bin/incident-commander /app