diff --git a/.github/workflows/packages.yml b/.github/workflows/packages.yml
index 0eac1b10..0659f0dc 100644
--- a/.github/workflows/packages.yml
+++ b/.github/workflows/packages.yml
@@ -3,6 +3,8 @@ name: Build packages
 on:
   - workflow_dispatch
 
+env:
+  PIP_BREAK_SYSTEM_PACKAGES: "1"
 
 jobs:
   build-sdist:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 19baedff..ec1475bb 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,5 +1,8 @@
 name: Tests
 
+env:
+  PIP_BREAK_SYSTEM_PACKAGES: "1"
+
 on:
   push:
   pull_request: