diff --git a/gemini/multimodal-live-api/project-livewire/server/requirements.txt b/gemini/multimodal-live-api/project-livewire/server/requirements.txt
index 537a95db82d..716744dbc1b 100644
--- a/gemini/multimodal-live-api/project-livewire/server/requirements.txt
+++ b/gemini/multimodal-live-api/project-livewire/server/requirements.txt
@@ -1,7 +1,7 @@
 websockets==14.1
 google-auth==2.37.0
 certifi==2024.12.14
-requests==2.32.3
+requests==2.32.4
 google-genai==1.3.0
 aiohttp==3.12.14
 python-dotenv==1.0.1
diff --git a/gemini/sample-apps/llamadeploy-on-cloud-run/requirements.txt b/gemini/sample-apps/llamadeploy-on-cloud-run/requirements.txt
index cd676c1cbbd..4915add7909 100644
--- a/gemini/sample-apps/llamadeploy-on-cloud-run/requirements.txt
+++ b/gemini/sample-apps/llamadeploy-on-cloud-run/requirements.txt
@@ -1,4 +1,4 @@
-llama-index==0.12.28
+llama-index==0.12.41
 llama-index-embeddings-vertex==0.3.2
 llama-index-utils-workflow==0.3.0
 llama-index-llms-vertex==0.4.5
diff --git a/gemini/sample-apps/quickbot/conversational-app-multi-playbook/backend/requirements.txt b/gemini/sample-apps/quickbot/conversational-app-multi-playbook/backend/requirements.txt
index c9dd060cf09..9b0836d95fd 100644
--- a/gemini/sample-apps/quickbot/conversational-app-multi-playbook/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/conversational-app-multi-playbook/backend/requirements.txt
@@ -1,19 +1,19 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 
 langchain==0.3.2
 langchain-community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 
 google-cloud-aiplatform==1.69.0
diff --git a/gemini/sample-apps/quickbot/conversational-app-multi-playbook/functions/create-intent/requirements.txt b/gemini/sample-apps/quickbot/conversational-app-multi-playbook/functions/create-intent/requirements.txt
index bd9369b714c..e40d8081fae 100644
--- a/gemini/sample-apps/quickbot/conversational-app-multi-playbook/functions/create-intent/requirements.txt
+++ b/gemini/sample-apps/quickbot/conversational-app-multi-playbook/functions/create-intent/requirements.txt
@@ -7,7 +7,7 @@ google-cloud-logging==3.11.2
 
 langchain==0.3.2
 langchain_community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 langchain-google-community==2.0.1
 pdfminer.six==20240706
\ No newline at end of file
diff --git a/gemini/sample-apps/quickbot/conversational-app-single-playbook/backend/requirements.txt b/gemini/sample-apps/quickbot/conversational-app-single-playbook/backend/requirements.txt
index c9dd060cf09..9b0836d95fd 100644
--- a/gemini/sample-apps/quickbot/conversational-app-single-playbook/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/conversational-app-single-playbook/backend/requirements.txt
@@ -1,19 +1,19 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 
 langchain==0.3.2
 langchain-community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 
 google-cloud-aiplatform==1.69.0
diff --git a/gemini/sample-apps/quickbot/conversational-app-single-playbook/functions/create-intent/requirements.txt b/gemini/sample-apps/quickbot/conversational-app-single-playbook/functions/create-intent/requirements.txt
index bd9369b714c..e40d8081fae 100644
--- a/gemini/sample-apps/quickbot/conversational-app-single-playbook/functions/create-intent/requirements.txt
+++ b/gemini/sample-apps/quickbot/conversational-app-single-playbook/functions/create-intent/requirements.txt
@@ -7,7 +7,7 @@ google-cloud-logging==3.11.2
 
 langchain==0.3.2
 langchain_community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 langchain-google-community==2.0.1
 pdfminer.six==20240706
\ No newline at end of file
diff --git a/gemini/sample-apps/quickbot/document-search-using-agent-builder/backend/requirements.txt b/gemini/sample-apps/quickbot/document-search-using-agent-builder/backend/requirements.txt
index 435f6008676..271874bd70f 100644
--- a/gemini/sample-apps/quickbot/document-search-using-agent-builder/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/document-search-using-agent-builder/backend/requirements.txt
@@ -1,19 +1,19 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 
 langchain==0.3.2
 langchain-community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 
 google-cloud-aiplatform==1.69.0
diff --git a/gemini/sample-apps/quickbot/image-background-changer-using-imagen3/backend/requirements.txt b/gemini/sample-apps/quickbot/image-background-changer-using-imagen3/backend/requirements.txt
index 73ac7244f50..bf5f997dd8c 100644
--- a/gemini/sample-apps/quickbot/image-background-changer-using-imagen3/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/image-background-changer-using-imagen3/backend/requirements.txt
@@ -1,16 +1,16 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
-Pillow==11.2.1
+requests==2.32.4
+Pillow==11.3.0
 
 google-cloud-aiplatform==1.69.0
 google-cloud-bigquery==3.26.0
diff --git a/gemini/sample-apps/quickbot/linkedin-profile-image-generation-using-imagen3/backend/requirements.txt b/gemini/sample-apps/quickbot/linkedin-profile-image-generation-using-imagen3/backend/requirements.txt
index dbb56141fc5..fffbbe2e4cd 100644
--- a/gemini/sample-apps/quickbot/linkedin-profile-image-generation-using-imagen3/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/linkedin-profile-image-generation-using-imagen3/backend/requirements.txt
@@ -1,17 +1,17 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 opencv-python
-pillow==11.1.0
+pillow==11.3.0
 numpy==2.2.4
 
 google-cloud-aiplatform==1.69.0
diff --git a/gemini/sample-apps/quickbot/text-to-image-using-imagen3/backend/requirements.txt b/gemini/sample-apps/quickbot/text-to-image-using-imagen3/backend/requirements.txt
index a9f6017243e..cfcf83e2763 100644
--- a/gemini/sample-apps/quickbot/text-to-image-using-imagen3/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/text-to-image-using-imagen3/backend/requirements.txt
@@ -1,15 +1,15 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 
 google-cloud-aiplatform==1.69.0
 google-cloud-bigquery==3.26.0
diff --git a/gemini/sample-apps/quickbot/website-search-using-agent-builder/backend/requirements.txt b/gemini/sample-apps/quickbot/website-search-using-agent-builder/backend/requirements.txt
index 435f6008676..271874bd70f 100644
--- a/gemini/sample-apps/quickbot/website-search-using-agent-builder/backend/requirements.txt
+++ b/gemini/sample-apps/quickbot/website-search-using-agent-builder/backend/requirements.txt
@@ -1,19 +1,19 @@
-gunicorn==20.1.0; python_version > '3.0'
+gunicorn==23.0.0; python_version > '3.0'
 gunicorn==19.10.0; python_version < '3.0'
 uvicorn~=0.17.0
 fastapi~=0.111.1
 fastapi-utilities==0.2.0
 cloudpickle==2.2.1
 grpcio==1.66.2
-urllib3==1.26.16
+urllib3==2.5.0
 typing-inspect==0.9.0
 typing_extensions==4.12.2
 pydantic==2.9.2
-requests==2.31.0
+requests==2.32.4
 
 langchain==0.3.2
 langchain-community==0.3.1
-langchain-core==0.3.9
+langchain-core==0.3.15
 langchain-google-vertexai==2.0.4
 
 google-cloud-aiplatform==1.69.0
diff --git a/gemini/tuning/genai-mlops-tune-and-eval/requirements.txt b/gemini/tuning/genai-mlops-tune-and-eval/requirements.txt
index 2bc81d06ea8..432452206da 100644
--- a/gemini/tuning/genai-mlops-tune-and-eval/requirements.txt
+++ b/gemini/tuning/genai-mlops-tune-and-eval/requirements.txt
@@ -33,7 +33,7 @@ pydantic==2.11.1
 pydantic_core==2.33.1
 python-dateutil==2.9.0.post0
 PyYAML==6.0.2
-requests==2.32.3
+requests==2.32.4
 requests-oauthlib==2.0.0
 requests-toolbelt==0.10.1
 rsa==4.9
@@ -41,5 +41,5 @@ shapely==2.0.7
 six==1.17.0
 tabulate==0.9.0
 typing_extensions==4.13.0
-urllib3==1.26.20
+urllib3==2.5.0
 websocket-client==1.8.0