diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index ad08f36..47e1412 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -5,6 +5,7 @@
 # - checks out code
 # - sets up Python environment
 # - installs dependencies via requirements.txt
+# - installs pytest and pytest-asyncio as test tool
 # - runs tests via pytest ./scl/test/
 
 name: Unit Tests
@@ -36,6 +37,9 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements.txt
 
+      - name: Install test tools
+        run: pip install pytest pytest-asyncio
+
       - name: Run unit tests
         run: pytest ./scl/test/
 
@@ -44,4 +48,5 @@ jobs:
 # - Pushing to main/master
 # - Creating, updating, or reopening a pull request targeting main/master
 # Developers can also manually trigger it via the "Actions" tab if needed.
-# To debug, inspect the "Run unit tests" step logs in the GitHub Actions console.
\ No newline at end of file
+# To debug, inspect the "Run unit tests" step logs in the GitHub Actions console.
+# run test via pytest ./scl/test/
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index ffc0d26..605befd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,17 +26,17 @@ langgraph-sdk==0.2.15
 langsmith==0.5.2
 numpy==2.3.5
 openai==2.14.0
-opentelemetry-api==1.41.0
+opentelemetry-api==1.39.1
 opentelemetry-exporter-otlp==1.39.1
 opentelemetry-exporter-otlp-proto-common==1.39.1
 opentelemetry-exporter-otlp-proto-grpc==1.39.1
 opentelemetry-exporter-otlp-proto-http==1.39.1
-opentelemetry-exporter-prometheus==0.62b0
+opentelemetry-exporter-prometheus==0.60b1
 opentelemetry-instrumentation==0.60b1
 opentelemetry-instrumentation-logging==0.60b1
 opentelemetry-proto==1.39.1
-opentelemetry-sdk==1.41.0
-opentelemetry-semantic-conventions==0.62b0
+opentelemetry-sdk==1.39.1
+opentelemetry-semantic-conventions==0.60b1
 orjson==3.11.5
 ormsgpack==1.12.1
 packaging==25.0
@@ -66,4 +66,4 @@ watchdog==6.0.0
 wrapt==1.17.3
 xxhash==3.6.0
 zipp==3.23.0
-zstandard==0.25.0
+zstandard==0.25.0
\ No newline at end of file