diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 17973373..4be7119b 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.2.1
+current_version = 0.2.2
 commit = True
 message = Bumps version to {new_version}
 tag = False
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 2b381df0..832df08e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -15,6 +15,11 @@ updates:
   schedule:
     interval: weekly
   open-pull-requests-limit: 10
+- package-ecosystem: pip
+  directory: "/"
+  schedule:
+    interval: weekly
+  open-pull-requests-limit: 10
 - package-ecosystem: docker
   directory: "/"
   schedule:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index 971b1c29..00000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,15 +0,0 @@
-
-name: Update terraform dependencies
-
-on:
-  schedule:
-    - cron:  '0 6 * * *'
-
-jobs:
-  dependabot-terraform:
-    runs-on: ubuntu-latest
-    steps:
-      - name: update terraform dependencies
-        uses: plus3it/dependabot-terraform-action@p3-implementation
-        with:
-          github_dependency_token: ${{ secrets.GH_READONLY_TOKEN }}
diff --git a/.travis.yml b/.travis.yml
index 43280b24..d2781e78 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,6 @@
-dist: bionic
+dist: focal
+
+language: minimal
 
 stages:
   - lint
@@ -7,32 +9,29 @@ stages:
 
 if: branch = master OR type = pull_request
 
-stage: test
-
-name: Project Tests
-
-language: python
-
-python:
-  - "3.8"
-  - "3.9"
-
-install: skip
-
-script:
-  - |
-    set -e
-    make docker/run target=python/test
-    make localstack/up
-    make localstack/pytest
-    make localstack/clean
+before_install:
+  - tmpdaemon=$(mktemp)
+  - sudo jq '."registry-mirrors" += ["https://mirror.gcr.io"]' /etc/docker/daemon.json > "$tmpdaemon"
+  - sudo mv "$tmpdaemon" /etc/docker/daemon.json
+  - sudo systemctl daemon-reload
+  - sudo systemctl restart docker
+  - docker system info
 
 jobs:
   include:
     - stage: lint
       name: Project Syntax Verification
-      script:
-        - make docker/run target=lint
+      script: make docker/run target=lint
+    - stage: test
+      name: Run unit tests
+      script: make docker/run target=pytest/lambda/tests
+    - stage: test
+      name: Run integration tests against a mock AWS stack
+      install:
+        - make docker-compose/install
+        - make mockstack/up
+      script: make mockstack/pytest/lambda
+      after_script: make mockstack/clean
     - stage: deploy
       if: branch = master AND type = push AND repo = plus3it/terraform-aws-org-new-account-trust-policy
       before_script:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20a37347..33f1576a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,21 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+### 0.2.2
+
+**Commit Delta**: [Change from 0.2.1 release](https://github.com/plus3it/terraform-aws-org-new-account-trust-policy/compare/0.2.1...0.2.2)
+
+**Released**: 2021.07.22
+
+**Summary**:
+
+*   Moved common requirements to `requirements_common.txt`.  Dependabot
+    does not want to see duplicate requirements.
+
+*   Updated the `Makefile` to take advantage of new targets in tardigrade-ci.
+
+*   Updated the Travis workflow to reflect changes in tardigrade-ci
+
 ### 0.2.1
 
 **Commit Delta**: [Change from 0.2.0 release](https://github.com/plus3it/terraform-aws-org-new-account-trust-policy/compare/0.2.0...0.2.1)
diff --git a/Dockerfile b/Dockerfile
index 0d14bc41..09087351 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,11 @@
-FROM plus3it/tardigrade-ci:0.14.1
+FROM plus3it/tardigrade-ci:0.16.1
 
-COPY ./lambda/src/requirements.txt /src/requirements.txt
-COPY ./lambda/tests/requirements_dev.txt /tests/requirements_dev.txt
+COPY ./lambda/src/requirements.txt /lambda/src/requirements.txt
+COPY ./lambda/tests/requirements_dev.txt /lambda/tests/requirements_dev.txt
 COPY ./tests/requirements_test.txt /tests/requirements_test.txt
+COPY ./requirements_common.txt /requirements_common.txt
 
 RUN python -m pip install --no-cache-dir \
-    -r /src/requirements.txt \
-    -r /tests/requirements_dev.txt \
+    -r /lambda/src/requirements.txt \
+    -r /lambda/tests/requirements_dev.txt \
     -r /tests/requirements_test.txt
diff --git a/Dockerfile_test b/Dockerfile_test
index 1548a43b..a335f254 100644
--- a/Dockerfile_test
+++ b/Dockerfile_test
@@ -1,5 +1,6 @@
-FROM plus3it/tardigrade-ci:0.14.1
+FROM plus3it/tardigrade-ci:0.16.1
 
 COPY ./tests/requirements_test.txt /tests/requirements_test.txt
+COPY ./requirements_common.txt /requirements_common.txt
 
 RUN python -m pip install --no-cache-dir -r /tests/requirements_test.txt
diff --git a/Makefile b/Makefile
index b523e8b6..b8cddb6c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,55 +1,26 @@
 SHELL := /bin/bash
 export PYTHONPATH := $(PYTHONPATH):./lambda/src
+export TERRAFORM_PYTEST_DIR := tests
 
 include $(shell test -f .tardigrade-ci || curl -sSL -o .tardigrade-ci "https://raw.githubusercontent.com/plus3it/tardigrade-ci/master/bootstrap/Makefile.bootstrap"; echo .tardigrade-ci)
 
-pytest/install:
-	@ $(MAKE) install/pip/$(@D) PYPI_PKG_NAME=$(@D)
+.PHONY: pytest/deps
+pytest/deps:
+	@ echo "[@] Installing dependencies used for unit and integration tests"
 	@ python -m pip install \
 		-r lambda/tests/requirements_dev.txt \
 		-r tests/requirements_test.txt
 
 .PHONY: python/deps
 python/deps:
-	@ echo "[$@] Installing package dependencies"
+	@ echo "[$@] Installing lambda dependencies"
 	@ python -m pip install -r lambda/src/requirements.txt
 
-.PHONY: python/test
-python/test: | guard/program/pytest
-python/test:
-	@ echo "[$@] Starting Python tests"
-	pytest lambda/tests
-	@ echo "[$@]: Tests executed!"
-
-.PHONY: terraform/pytest
-terraform/pytest: | guard/program/terraform guard/program/pytest
-	@ echo "[$@] Starting test of Terraform lambda installation"
-	@ echo "[$@] LocalStack must be running; 'make localstack/up' can "
-	@ echo "[$@]    be used to start LocalStack"
-	@ echo "[$@] Terraform 'apply' command is slow ... be patient !!!"
-	pytest tests
-	@ echo "[$@]: Completed successfully!"
-
-.PHONY: localstack/pytest localstack/up localstack/down localstack/clean
-localstack/pytest: | guard/program/terraform guard/program/pytest
+.PHONY: mockstack/pytest/lambda
+mockstack/pytest/lambda: | guard/program/terraform guard/program/pytest
 	@ echo "[$@] Running Terraform tests against LocalStack"
 	DOCKER_RUN_FLAGS="--network tests_default --rm -e LOCALSTACK_HOST=localstack" \
 		TARDIGRADE_CI_DOCKERFILE=Dockerfile_test \
 		IMAGE_NAME=new-account-trust-policy-integration-test:latest \
 		$(MAKE) docker/run target=terraform/pytest
 	@ echo "[$@]: Completed successfully!"
-
-localstack/up: | guard/program/terraform guard/program/pytest
-	@ echo "[$@] Starting LocalStack container"
-	docker-compose -f tests/docker-compose-localstack.yml up --detach
-
-localstack/down: | guard/program/terraform guard/program/pytest
-	@ echo "[$@] Stopping LocalStack container"
-	docker-compose -f tests/docker-compose-localstack.yml down
-
-localstack/clean: | localstack/down
-	@ echo "[$@] Stopping and removing LocalStack container and images"
-	set +o pipefail; docker images | grep lambci | \
-		awk '{print $$1 ":" $$2}' | xargs -r docker rmi
-	set +o pipefail; docker images | grep new-account-trust-policy | \
-		awk '{print $$1 ":" $$2}' | xargs -r docker rmi
diff --git a/README.md b/README.md
index 2c87845c..65203cb3 100644
--- a/README.md
+++ b/README.md
@@ -30,17 +30,24 @@ aws cloudformation deploy --profile mock-dev --template package.yaml --capabilit
 
 ## Testing
 
-To set up and run tests against the Terraform configuration:
+To set up and run tests: 
 
 ```
-# Start up LocalStack, a mock AWS stack:
-make localstack/up
+# Ensure the dependencies are installed on your system.
+make python/deps
+make pytest/deps
+
+# Start up a mock AWS stack:
+make mockstack/up
+
+# Run unit tests:
+make docker/run target=pytest/lambda/tests
 
 # Run the tests:
-make terraform/pytest
+make mockstack/pytest/lambda
 
-# Shut down LocalStack and clean up docker images:
-make localstack/clean
+# Shut down the mock AWS stack and clean up docker images:
+make mockstack/clean
 ```
 
 <!-- BEGIN TFDOCS -->
diff --git a/lambda/src/requirements.txt b/lambda/src/requirements.txt
index 5618ea41..f5f2c275 100644
--- a/lambda/src/requirements.txt
+++ b/lambda/src/requirements.txt
@@ -1,3 +1,3 @@
 aws-lambda-powertools==1.17.1
-boto3==1.17.109
+boto3==1.18.2
 aws-assume-role-lib==1.7.0
diff --git a/lambda/tests/requirements_dev.txt b/lambda/tests/requirements_dev.txt
index 2e85dbb2..066a671a 100644
--- a/lambda/tests/requirements_dev.txt
+++ b/lambda/tests/requirements_dev.txt
@@ -1,2 +1,2 @@
-moto==2.0.11
-pytest==6.2.3
+moto==2.1.0
+-r ../../requirements_common.txt
diff --git a/requirements_common.txt b/requirements_common.txt
new file mode 100644
index 00000000..95ea1e6a
--- /dev/null
+++ b/requirements_common.txt
@@ -0,0 +1 @@
+pytest==6.2.4
diff --git a/tests/requirements_test.txt b/tests/requirements_test.txt
index 2201fad7..5fe425f3 100644
--- a/tests/requirements_test.txt
+++ b/tests/requirements_test.txt
@@ -1,3 +1,3 @@
 tftest==1.6.0
-pytest==6.2.3
 localstack-client==1.21
+-r ../requirements_common.txt