diff --git a/.github/workflows/production.yml b/.github/workflows/production.yml
index 2d2cbc13..22cd1c35 100644
--- a/.github/workflows/production.yml
+++ b/.github/workflows/production.yml
@@ -22,7 +22,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment started
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to production has started
@@ -73,7 +73,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment finished
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to new production has finished
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 326b9ad4..a1c0a7cc 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -623,7 +623,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment started
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to test has started
@@ -678,7 +678,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment finished
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to test has finished
@@ -700,7 +700,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment started
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to staging has started
@@ -753,7 +753,7 @@ jobs:
       shell: bash
 
     - name: Notify deployment finished
-      uses: slackapi/slack-github-action@v1.25.0
+      uses: slackapi/slack-github-action@v1.26.0
       with:
         channel-id: '#team-dinosaur-dev'
         slack-message: Deployment of postal-registry to staging has finished