diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8e6c6f78..134342b3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,7 +39,7 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Install tau2 for testing
-        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@main
+        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@v0.2.0
 
       - name: Ruff lint
         run: uv run ruff check .
@@ -82,7 +82,7 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Install tau2 for testing
-        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@main
+        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@v0.2.0
 
       - name: Run Core Tests with pytest-xdist (Shard ${{ matrix.shard }}/${{ matrix.total-shards }})
         env:
@@ -121,7 +121,7 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Install tau2 for testing
-        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@main
+        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@v0.2.0
 
       - name: Run Batch Evaluation Tests
         env:
@@ -154,4 +154,4 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Install tau2 for testing
-        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@main
+        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@v0.2.0
diff --git a/.github/workflows/e2e-smoke-test.yml b/.github/workflows/e2e-smoke-test.yml
index 33876979..b65f7d5a 100644
--- a/.github/workflows/e2e-smoke-test.yml
+++ b/.github/workflows/e2e-smoke-test.yml
@@ -37,7 +37,7 @@ jobs:
         run: uv sync --locked --all-extras --dev
 
       - name: Install tau2 for testing
-        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@main
+        run: uv pip install git+https://github.com/sierra-research/tau2-bench.git@v0.2.0
 
       - name: Run E2E Smoke Test
         id: run_test
diff --git a/pyproject.toml b/pyproject.toml
index 3025582f..e3d162a7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -184,7 +184,7 @@ parentdir_prefix = "eval-protocol-"
 ### Black and isort removed; Ruff provides formatting and imports
 
 [tool.uv.sources]
-tau2 = { git = "https://github.com/sierra-research/tau2-bench.git" }
+tau2 = { git = "https://github.com/sierra-research/tau2-bench.git", rev = "v0.2.0" }
 
 [dependency-groups]
 dev = [