diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index af4dec5..f88f3d9 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -23,8 +23,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
       - uses: astral-sh/setup-uv@v3
       - run: uv run pytest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 47a7704..c0de48e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
+## [0.5.1]
+### Fixed
+- Fixed bug where an incorrect thread ID was referenced causing chats to fail
+- Add support for Python >= 3.10
+
 ## [0.5.0]
 ### Added
 - Correct citation text in terminal and Gradio output
diff --git a/pyproject.toml b/pyproject.toml
index 041d05c..30a49d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,12 +1,12 @@
 [project]
 name = "vecsync"
-version = "0.5.0"
+version = "0.5.1"
 description = "A simple command-line utility for synchronizing documents to vector storage for LLM interaction."
 readme = "README.md"
 authors = [
     { name = "John Bencina", email = "jbencina@users.noreply.github.com" }
 ]
-requires-python = ">=3.13"
+requires-python = ">=3.10"
 license = { file = "LICENSE" }
 
 keywords = [
@@ -35,6 +35,9 @@ classifiers = [
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
     "Topic :: Utilities",
diff --git a/src/vecsync/chat/clients/openai.py b/src/vecsync/chat/clients/openai.py
index 98215a5..3173aa1 100644
--- a/src/vecsync/chat/clients/openai.py
+++ b/src/vecsync/chat/clients/openai.py
@@ -154,10 +154,10 @@ def _run_stream(self, handler: OpenAIHandler):
         ) as stream:
             stream.until_done()
 
-    def send_message(self, thread_id: str, prompt: str):
+    def send_message(self, prompt: str):
         self.initialize_chat()
 
-        return self.client.beta.threads.messages.create(thread_id=thread_id, role="user", content=prompt)
+        return self.client.beta.threads.messages.create(thread_id=self.thread_id, role="user", content=prompt)
 
     def stream_response(self, thread_id: str, assistant_id: str, handler):
         with self.client.beta.threads.runs.stream(
diff --git a/src/vecsync/chat/interface.py b/src/vecsync/chat/interface.py
index 7bed4db..5cd44ad 100644
--- a/src/vecsync/chat/interface.py
+++ b/src/vecsync/chat/interface.py
@@ -16,7 +16,7 @@ def prompt(self, prompt_text: str):
         fmt = ConsoleFormatter()
         handler = OpenAIHandler(self.client.files, fmt)
 
-        self.client.send_message(self.client.thread_id, prompt_text)
+        self.client.send_message(prompt_text)
 
         self.executor.submit(self.client.stream_response, self.client.thread_id, self.client.assistant_id, handler)
         for chunk in handler.consume_queue():
@@ -34,7 +34,7 @@ def gradio_prompt(message, history):
             fmt = GradioFormatter()
             handler = OpenAIHandler(self.client.files, fmt)
 
-            self.client.send_message(self.client.thread_id, message)
+            self.client.send_message(message)
 
             self.executor.submit(self.client.stream_response, self.client.thread_id, self.client.assistant_id, handler)
             response = ""