diff --git a/spackbot/workers.py b/spackbot/workers.py
index 1163d64..8fbf360 100644
--- a/spackbot/workers.py
+++ b/spackbot/workers.py
@@ -326,6 +326,12 @@ async def fix_style_task(event):
         # Style tool is run from the root dir expressed as {0}
         upstream_url = helpers.PROJECTS[repo_name].upstream_url
         if repo_name == "spack":
+            await gh.post(
+                event.data["issue"]["comments_url"], {}, data={"body": "Spackbot style is disabled while transitioning to Ruff"}
+            )
+            logger.info("Skipping style for core")
+            return
+
             style_tool = (
                 "bin/spack",
                 ["--color", "never", "style", "--fix", "--root", "{0}"],
diff --git a/workers/Dockerfile b/workers/Dockerfile
index b235ef0..d7a8120 100644
--- a/workers/Dockerfile
+++ b/workers/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:3.14
 
-ADD https://raw.githubusercontent.com/spack/spack/refs/heads/develop/.github/workflows/requirements/style/requirements.txt /source/style-requirements.txt
 COPY workers/requirements.txt /source/requirements.txt
+COPY workers/style-requirements.txt /source/style-requirements.txt
 
 RUN pip3 install --upgrade pip setuptools wheel && \
     pip3 install -r /source/requirements.txt && \
diff --git a/workers/style-requirements.txt b/workers/style-requirements.txt
new file mode 100644
index 0000000..78051eb
--- /dev/null
+++ b/workers/style-requirements.txt
@@ -0,0 +1,12 @@
+black==25.12.0
+clingo==5.8.0
+flake8==7.3.0
+isort==7.0.0
+mypy==1.20.0
+types-six==1.17.0.20251009
+vermin==1.8.0
+pylint==4.0.5
+docutils==0.22.4
+ruamel.yaml==0.19.1
+slotscheck==0.19.1
+ruff==0.15.7