diff --git a/.github/workflows/nightly-check-ci.yml b/.github/workflows/nightly-check-ci.yml
index faa3c63a5f7..dae90e275d1 100644
--- a/.github/workflows/nightly-check-ci.yml
+++ b/.github/workflows/nightly-check-ci.yml
@@ -129,7 +129,7 @@ jobs:
           report_paths: '**/build/test-results/*/TEST-*.xml'
 
       - name: Slack Nightly Failure
-        uses: slackapi/slack-github-action@v2.1.0
+        uses: slackapi/slack-github-action@v3.0.1
         id: slack-nightly-failure
         if: ${{ failure() && github.repository_owner == 'deephaven' && github.ref == 'refs/heads/main' }}
         with:
diff --git a/.github/workflows/nightly-docs.yml b/.github/workflows/nightly-docs.yml
index 931bce957c2..0f3148d52b9 100644
--- a/.github/workflows/nightly-docs.yml
+++ b/.github/workflows/nightly-docs.yml
@@ -59,7 +59,7 @@ jobs:
     if: failure() && github.ref == 'refs/heads/main' && github.repository_owner == 'deephaven'
     steps:
       - name: Slack Notification
-        uses: slackapi/slack-github-action@v1.23.0
+        uses: slackapi/slack-github-action@v3.0.1
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL_DEVREL}}
         with:
diff --git a/.github/workflows/nightly-image-check.yml b/.github/workflows/nightly-image-check.yml
index e937d1ba103..3a7bc3fa14e 100644
--- a/.github/workflows/nightly-image-check.yml
+++ b/.github/workflows/nightly-image-check.yml
@@ -32,7 +32,7 @@ jobs:
         run: ./gradlew --continue pullImage compareImage
 
       - name: Notify Slack
-        uses: slackapi/slack-github-action@v2.1.0
+        uses: slackapi/slack-github-action@v3.0.1
         id: notify-slack
         if: ${{ failure() }}
         env:
diff --git a/.github/workflows/nightly-publish-ci.yml b/.github/workflows/nightly-publish-ci.yml
index bd5d40fb786..b235b47dc3e 100644
--- a/.github/workflows/nightly-publish-ci.yml
+++ b/.github/workflows/nightly-publish-ci.yml
@@ -46,7 +46,7 @@ jobs:
           ORG_GRADLE_PROJECT_signingRequired: true
 
       - name: Slack Nightly Failure
-        uses: slackapi/slack-github-action@v2.1.0
+        uses: slackapi/slack-github-action@v3.0.1
         id: slack-nightly-failure
         if: failure()
         with:
diff --git a/.github/workflows/pr-merge-webhook.yml b/.github/workflows/pr-merge-webhook.yml
index 7a0e5889d84..43b49cc7cf6 100644
--- a/.github/workflows/pr-merge-webhook.yml
+++ b/.github/workflows/pr-merge-webhook.yml
@@ -24,7 +24,7 @@ jobs:
           curl -X POST -H 'X-Automation-Webhook-Token: ${{ secrets.JIRA_WEBHOOK_SECRET_PR_MERGE }}' -H "Content-Type: application/json" --data "$WEBHOOK_DATA" ${{ secrets.JIRA_WEBHOOK_URL_PR_MERGE }}
 
       - name: Slack Failure Message
-        uses: slackapi/slack-github-action@v2.1.0
+        uses: slackapi/slack-github-action@v3.0.1
         id: slack-failure-message
         if: failure() && github.ref == 'refs/heads/main' && github.repository_owner == 'deephaven'
         env:
diff --git a/.github/workflows/publish-ci.yml b/.github/workflows/publish-ci.yml
index 830fd99033f..2d88cd061ea 100644
--- a/.github/workflows/publish-ci.yml
+++ b/.github/workflows/publish-ci.yml
@@ -138,7 +138,7 @@ jobs:
         run: npm publish --provenance --tag latest web/client-api/types/build/deephaven-jsapi-types-*.tgz
         continue-on-error: true
 
-      - uses: slackapi/slack-github-action@v2.1.0
+      - uses: slackapi/slack-github-action@v3.0.1
         if: ${{ steps.publish-deephaven-core.outcome == 'failure' }}
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL_PUBLISH_FAILURE }}
@@ -147,7 +147,7 @@ jobs:
             step_id: "${{ steps.publish-deephaven-core.id }}"
             action_url: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
 
-      - uses: slackapi/slack-github-action@v2.1.0
+      - uses: slackapi/slack-github-action@v3.0.1
         if: ${{ steps.publish-deephaven-server.outcome == 'failure' }}
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL_PUBLISH_FAILURE }}
@@ -156,7 +156,7 @@ jobs:
             step_id: "${{ steps.publish-deephaven-server.id }}"
             action_url: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
 
-      - uses: slackapi/slack-github-action@v2.1.0
+      - uses: slackapi/slack-github-action@v3.0.1
         if: ${{ steps.publish-pydeephaven.outcome == 'failure' }}
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL_PUBLISH_FAILURE }}
@@ -165,7 +165,7 @@ jobs:
             step_id: "${{ steps.publish-pydeephaven.id }}"
             action_url: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
 
-      - uses: slackapi/slack-github-action@v2.1.0
+      - uses: slackapi/slack-github-action@v3.0.1
         if: ${{ steps.publish-pydeephaven-ticking.outcome == 'failure' }}
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL_PUBLISH_FAILURE }}
@@ -174,7 +174,7 @@ jobs:
             step_id: "${{ steps.publish-pydeephaven-ticking.id }}"
             action_url: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
 
-      - uses: slackapi/slack-github-action@v2.1.0
+      - uses: slackapi/slack-github-action@v3.0.1
         if: ${{ steps.publish-deephaven-jsapi-types.outcome == 'failure' }}
         with:
           webhook: ${{ secrets.SLACK_WEBHOOK_URL_PUBLISH_FAILURE }}