diff --git a/.github/workflows/deploy-docs.yml b/.github/workflows/deploy-docs.yml
index a186346..fe4f9ef 100644
--- a/.github/workflows/deploy-docs.yml
+++ b/.github/workflows/deploy-docs.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
diff --git a/src/courses/advanced/09.md b/src/courses/advanced/09.md
index b377456..5416ab5 100644
--- a/src/courses/advanced/09.md
+++ b/src/courses/advanced/09.md
@@ -67,7 +67,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
diff --git a/src/courses/advanced/10.md b/src/courses/advanced/10.md
index 46e2baa..86c53dc 100644
--- a/src/courses/advanced/10.md
+++ b/src/courses/advanced/10.md
@@ -21,7 +21,7 @@ First, we need to make sure that the node that runs our pipeline will have acces
   run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
 - name: PREP - Check out this repository  # because that's where our profile is!
-  uses: actions/checkout@v4
+  uses: actions/checkout@v3
 ```
 @tab `pipeline.yml` after adding more steps
 ``` yaml
@@ -46,7 +46,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 ```
 :::
 
@@ -98,7 +98,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
@@ -149,7 +149,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
@@ -213,7 +213,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
@@ -283,7 +283,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
diff --git a/src/courses/advanced/11.md b/src/courses/advanced/11.md
index 23f6366..bd72eac 100644
--- a/src/courses/advanced/11.md
+++ b/src/courses/advanced/11.md
@@ -116,7 +116,7 @@ jobs:
         run: curl https://omnitruck.chef.io/install.sh | sudo bash -s -- -P inspec -v 5
 
       - name: PREP - Check out this repository  # because that's where our profile is!
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         
       - name: LINT - Run InSpec Check           # double-check that we don't have any serious issues in our profile code
         run: inspec check $PROFILE
diff --git a/src/courses/advanced/Appendix D - Example Pipeline for Validating an InSpec Profile.md b/src/courses/advanced/Appendix D - Example Pipeline for Validating an InSpec Profile.md
index 3d8466e..05d06c8 100644
--- a/src/courses/advanced/Appendix D - Example Pipeline for Validating an InSpec Profile.md	
+++ b/src/courses/advanced/Appendix D - Example Pipeline for Validating an InSpec Profile.md	
@@ -57,7 +57,7 @@ jobs:
           aws-secret-access-key: ${{ secrets.SAF_AWS_SECRET_ACCESS_KEY }}
           aws-region: us-east-1
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v2
       - name: Clone full repository so we can push
         run: git fetch --prune --unshallow
       - name: Setup Ruby