diff --git a/model-servers/vllm/0.11.0/requirements.txt b/model-servers/vllm/0.11.0/requirements.txt
index 3982f4a..2e6657a 100644
--- a/model-servers/vllm/0.11.0/requirements.txt
+++ b/model-servers/vllm/0.11.0/requirements.txt
@@ -95,7 +95,7 @@ transformers>=4.55.2; python_full_version >= '3.9.0'
 triton==3.4.0; platform_system == 'Linux' and platform_machine == 'x86_64'
 typer==0.12.3; python_version >= '3.7'
 typing-extensions==4.12.2; python_version >= '3.8'
-ujson==5.9.0; python_version >= '3.8'
+ujson==5.13.0; python_version >= '3.8'
 urllib3==2.2.1; python_version >= '3.8'
 uvicorn[standard]==0.29.0; python_version >= '3.8'
 uvloop==0.19.0
diff --git a/model-servers/vllm/0.6.4/requirements.txt b/model-servers/vllm/0.6.4/requirements.txt
index 58ece67..3287dab 100644
--- a/model-servers/vllm/0.6.4/requirements.txt
+++ b/model-servers/vllm/0.6.4/requirements.txt
@@ -94,7 +94,7 @@ transformers==4.45.2; python_full_version >= '3.8.0'
 triton==3.1.0; platform_system == 'Linux' and platform_machine == 'x86_64'
 typer==0.12.3; python_version >= '3.7'
 typing-extensions==4.12.2; python_version >= '3.8'
-ujson==5.9.0; python_version >= '3.8'
+ujson==5.13.0; python_version >= '3.8'
 urllib3==2.2.1; python_version >= '3.8'
 uvicorn[standard]==0.29.0; python_version >= '3.8'
 uvloop==0.19.0
diff --git a/model-servers/vllm/0.6.6/requirements.txt b/model-servers/vllm/0.6.6/requirements.txt
index 4429924..131b055 100644
--- a/model-servers/vllm/0.6.6/requirements.txt
+++ b/model-servers/vllm/0.6.6/requirements.txt
@@ -94,7 +94,7 @@ transformers==4.45.2; python_full_version >= '3.8.0'
 triton==3.1.0; platform_system == 'Linux' and platform_machine == 'x86_64'
 typer==0.12.3; python_version >= '3.7'
 typing-extensions==4.12.2; python_version >= '3.8'
-ujson==5.9.0; python_version >= '3.8'
+ujson==5.13.0; python_version >= '3.8'
 urllib3==2.2.1; python_version >= '3.8'
 uvicorn[standard]==0.29.0; python_version >= '3.8'
 uvloop==0.19.0
diff --git a/model-servers/vllm/0.8.4/requirements.txt b/model-servers/vllm/0.8.4/requirements.txt
index 10e65c7..b530683 100644
--- a/model-servers/vllm/0.8.4/requirements.txt
+++ b/model-servers/vllm/0.8.4/requirements.txt
@@ -94,7 +94,7 @@ transformers>=4.51.1; python_full_version >= '3.9.0'
 triton==3.2.0; platform_system == 'Linux' and platform_machine == 'x86_64'
 typer==0.12.3; python_version >= '3.7'
 typing-extensions==4.12.2; python_version >= '3.8'
-ujson==5.9.0; python_version >= '3.8'
+ujson==5.13.0; python_version >= '3.8'
 urllib3==2.2.1; python_version >= '3.8'
 uvicorn[standard]==0.29.0; python_version >= '3.8'
 uvloop==0.19.0