diff --git a/.github/workflows/amazon_bedrock.yml b/.github/workflows/amazon_bedrock.yml
index 2057d4bdf..be356ee4c 100644
--- a/.github/workflows/amazon_bedrock.yml
+++ b/.github/workflows/amazon_bedrock.yml
@@ -81,7 +81,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/amazon_sagemaker.yml b/.github/workflows/amazon_sagemaker.yml
index ed0a571e6..646f22e02 100644
--- a/.github/workflows/amazon_sagemaker.yml
+++ b/.github/workflows/amazon_sagemaker.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/anthropic.yml b/.github/workflows/anthropic.yml
index 52ba5c9d4..6dcc681bc 100644
--- a/.github/workflows/anthropic.yml
+++ b/.github/workflows/anthropic.yml
@@ -59,7 +59,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/astra.yml b/.github/workflows/astra.yml
index dcfc00c75..55ff7552c 100644
--- a/.github/workflows/astra.yml
+++ b/.github/workflows/astra.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/azure_ai_search.yml b/.github/workflows/azure_ai_search.yml
index 1c10edc91..7ead7d113 100644
--- a/.github/workflows/azure_ai_search.yml
+++ b/.github/workflows/azure_ai_search.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/chroma.yml b/.github/workflows/chroma.yml
index 6dbf36d85..323a8a0b3 100644
--- a/.github/workflows/chroma.yml
+++ b/.github/workflows/chroma.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/cohere.yml b/.github/workflows/cohere.yml
index 00a8ee2ed..2f74cd66a 100644
--- a/.github/workflows/cohere.yml
+++ b/.github/workflows/cohere.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/deepeval.yml b/.github/workflows/deepeval.yml
index 23de1a3f4..3d320cb8f 100644
--- a/.github/workflows/deepeval.yml
+++ b/.github/workflows/deepeval.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/elasticsearch.yml b/.github/workflows/elasticsearch.yml
index 476e832b5..2f34d7d19 100644
--- a/.github/workflows/elasticsearch.yml
+++ b/.github/workflows/elasticsearch.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/fastembed.yml b/.github/workflows/fastembed.yml
index e389bf3a4..431f947dc 100644
--- a/.github/workflows/fastembed.yml
+++ b/.github/workflows/fastembed.yml
@@ -47,7 +47,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/google_ai.yml b/.github/workflows/google_ai.yml
index 1b4b2e496..25ee0d020 100644
--- a/.github/workflows/google_ai.yml
+++ b/.github/workflows/google_ai.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/google_vertex.yml b/.github/workflows/google_vertex.yml
index 34c0cf07c..da9f6d7b3 100644
--- a/.github/workflows/google_vertex.yml
+++ b/.github/workflows/google_vertex.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/instructor_embedders.yml b/.github/workflows/instructor_embedders.yml
index f12f4d696..01e9798c3 100644
--- a/.github/workflows/instructor_embedders.yml
+++ b/.github/workflows/instructor_embedders.yml
@@ -40,7 +40,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/jina.yml b/.github/workflows/jina.yml
index 00af6eb45..c6d506714 100644
--- a/.github/workflows/jina.yml
+++ b/.github/workflows/jina.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/langfuse.yml b/.github/workflows/langfuse.yml
index 8a10cf241..0cac22f91 100644
--- a/.github/workflows/langfuse.yml
+++ b/.github/workflows/langfuse.yml
@@ -65,7 +65,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/llama_cpp.yml b/.github/workflows/llama_cpp.yml
index a9480ca96..b3ec462d3 100644
--- a/.github/workflows/llama_cpp.yml
+++ b/.github/workflows/llama_cpp.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/mistral.yml b/.github/workflows/mistral.yml
index e62008906..f0ce2f75a 100644
--- a/.github/workflows/mistral.yml
+++ b/.github/workflows/mistral.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/mongodb_atlas.yml b/.github/workflows/mongodb_atlas.yml
index 3fd2a43ac..690d52cd4 100644
--- a/.github/workflows/mongodb_atlas.yml
+++ b/.github/workflows/mongodb_atlas.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/nvidia.yml b/.github/workflows/nvidia.yml
index 0d39a4d91..39a5d062e 100644
--- a/.github/workflows/nvidia.yml
+++ b/.github/workflows/nvidia.yml
@@ -64,7 +64,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/ollama.yml b/.github/workflows/ollama.yml
index 43af485b7..8be6bf263 100644
--- a/.github/workflows/ollama.yml
+++ b/.github/workflows/ollama.yml
@@ -80,7 +80,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/opensearch.yml b/.github/workflows/opensearch.yml
index 48169a75f..32c9c4e6e 100644
--- a/.github/workflows/opensearch.yml
+++ b/.github/workflows/opensearch.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/optimum.yml b/.github/workflows/optimum.yml
index c33baa7f8..eb7b877d3 100644
--- a/.github/workflows/optimum.yml
+++ b/.github/workflows/optimum.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/pgvector.yml b/.github/workflows/pgvector.yml
index ab5c984ed..d1727e1fc 100644
--- a/.github/workflows/pgvector.yml
+++ b/.github/workflows/pgvector.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/pinecone.yml b/.github/workflows/pinecone.yml
index 9e143005b..7e34c70de 100644
--- a/.github/workflows/pinecone.yml
+++ b/.github/workflows/pinecone.yml
@@ -68,7 +68,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/qdrant.yml b/.github/workflows/qdrant.yml
index 116225b2d..2bb24d774 100644
--- a/.github/workflows/qdrant.yml
+++ b/.github/workflows/qdrant.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/ragas.yml b/.github/workflows/ragas.yml
index c4757e704..953f1ffee 100644
--- a/.github/workflows/ragas.yml
+++ b/.github/workflows/ragas.yml
@@ -63,7 +63,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/snowflake.yml b/.github/workflows/snowflake.yml
index 19596f312..98b30fc97 100644
--- a/.github/workflows/snowflake.yml
+++ b/.github/workflows/snowflake.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/unstructured.yml b/.github/workflows/unstructured.yml
index e4b640275..5a9aa77a3 100644
--- a/.github/workflows/unstructured.yml
+++ b/.github/workflows/unstructured.yml
@@ -74,7 +74,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures
diff --git a/.github/workflows/weaviate.yml b/.github/workflows/weaviate.yml
index 36c30f069..4368e62c0 100644
--- a/.github/workflows/weaviate.yml
+++ b/.github/workflows/weaviate.yml
@@ -60,7 +60,7 @@ jobs:
       - name: Nightly - run unit tests with Haystack main branch
         if: github.event_name == 'schedule'
         run: |
-          hatch run pip install git+https://github.com/deepset-ai/haystack.git
+          hatch run uv pip install git+https://github.com/deepset-ai/haystack.git@main
           hatch run cov-retry -m "not integration"
 
       - name: Send event to Datadog for nightly failures