diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 40c79fab77..fd7a45ff50 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ permissions:
   contents: read
 
 env:
-  DEFAULT_PYTHON: "3.10"
+  DEFAULT_PYTHON: "3.9"
   PYUPGRADE_TARGET: "--py39-plus"
 
 concurrency:
@@ -170,7 +170,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-          # - "3.9"
+          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
diff --git a/tests/test_build_components/build_components_base.nrf52.yaml b/tests/test_build_components/build_components_base.nrf52.yaml
new file mode 100644
index 0000000000..04211ffdfe
--- /dev/null
+++ b/tests/test_build_components/build_components_base.nrf52.yaml
@@ -0,0 +1,15 @@
+esphome:
+  name: componenttestnrf52
+  friendly_name: $component_name
+
+nrf52:
+  board: adafruit_feather_nrf52840
+
+logger:
+  level: VERY_VERBOSE
+
+packages:
+  component_under_test: !include
+    file: $component_test_file
+    vars:
+      component_test_file: $component_test_file