diff --git a/.github/workflows/python-continuous-integration.yml b/.github/workflows/python-continuous-integration.yml
index 1eddd26355..553f9f410a 100644
--- a/.github/workflows/python-continuous-integration.yml
+++ b/.github/workflows/python-continuous-integration.yml
@@ -32,13 +32,12 @@ jobs:
       with:
         version: '3.19.4'
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-    - name: Cache Python dependencies
+    - name: Set up Poetry cache for Python dependencies
       uses: actions/cache@v2
       with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements-dev.txt') }}
-        restore-keys: |
-          ${{ runner.os }}-pip-
+        path: ~/.cache/pypoetry
+        key: ${{ runner.os }}-poetry-${{ hashFiles('**/poetry.lock') }}
+        restore-keys: ${{ runner.os }}-poetry-
     - name: Install dependencies
       run: make install
     - name: Run build, style, and lint checks
diff --git a/Makefile b/Makefile
index b4a5939ed7..fcb028270c 100644
--- a/Makefile
+++ b/Makefile
@@ -140,6 +140,7 @@ test-notebooks: ## Run tests for the notebooks
 
 install: ## Install all dependencies with poetry.
 	@$(call i, Installing dependencies)
+	$(source HOME/.poetry/env)
 	poetry install
 
 coverage: ## Generate test coverage reports.