diff --git a/README.md b/README.md
index 7679217c87821f5a284324e63a72745fc3841c7e..2069cb4c34494f6e84ce8aaf216775fa73aaa21b 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ The Python template uses some global configuration used throughout all jobs.
 
 | Name                 | description                                                                                                      | default value      |
 | -------------------- | ---------------------------------------------------------------------------------------------------------------- | ------------------ |
-| `PYTHON_IMAGE`       | The Docker image used to run Python. **It is highly recommended to set the specific version your project needs** | `python:3-slim`    |
+| `PYTHON_IMAGE`       | The Docker image used to run Python. **It is highly recommended to set the specific version your project needs** | `python:3`    |
 | `PIP_INDEX_URL`      | Python repository url                                                                                            | _none_             |
 | `PYTHON_PROJECT_DIR` | Python project root directory                                                                                    | `.`                |
 | `REQUIREMENTS_FILE`  | Path to requirements file _(relative to `$PYTHON_PROJECT_DIR`)_                                                  | `requirements.txt` |
diff --git a/kicker.json b/kicker.json
index f3c25b0512411b2f6e6e3ee44f5da241621c3050..4bbcde2aaec162e0646502fb259f540ec219558b 100644
--- a/kicker.json
+++ b/kicker.json
@@ -7,7 +7,7 @@
     {
       "name": "PYTHON_IMAGE",
       "description": "The Docker image used to run Python - **it is highly recommended to set the specific version your project needs**",
-      "default": "python:3-slim"
+      "default": "python:3"
     },
     {
       "name": "PYTHON_PROJECT_DIR",
diff --git a/templates/gitlab-ci-python.yml b/templates/gitlab-ci-python.yml
index 5bc8835c7c653f75749794eb3d8f5ac01b733754..b849f81858ac540e444b10e6dc927bb0971d7c6d 100644
--- a/templates/gitlab-ci-python.yml
+++ b/templates/gitlab-ci-python.yml
@@ -17,7 +17,7 @@ variables:
   # Change pip's cache directory to be inside the project directory since we can
   # only cache local items.
   PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
-  PYTHON_IMAGE: python:3-slim
+  PYTHON_IMAGE: python:3
   # Default Python project root directory
   PYTHON_PROJECT_DIR: .
   REQUIREMENTS_FILE: requirements.txt