diff --git a/inferencex-e2e/configs/nvidia-master.yaml b/inferencex-e2e/configs/nvidia-master.yaml
index ba48d18e77..493344889a 100644
--- a/inferencex-e2e/configs/nvidia-master.yaml
+++ b/inferencex-e2e/configs/nvidia-master.yaml
@@ -9124,7 +9124,7 @@ dsv41flash-fp4-h200-vllm-agentic-dspark:
 # Match published vLLM TP4/EP1 and TP8/EP1 using dsv4 attention and the nightly's
 # native MXFP4 x BF16 Marlin MoE runner.
 dsv41flash-fp4-h200-sglang-agentic-dspark:
-  image: lmsysorg/sglang:nightly-dev-cu13-20261013-7224fce1
+  image: lmsysorg/sglang:nightly-dev-cu13-20261028-586355a8@sha256:b4f09a2ccbcfcc262d49600c3cd7f8581a793ea7d104947257b6a95500953b90
   model: deepseek-ai/DeepSeek-V4.1-Flash
   model-prefix: dsv41flash
   runner: cluster:h200-dgxc
diff --git a/inferencex-e2e/perf-changelog.yaml b/inferencex-e2e/perf-changelog.yaml
index 18e8e72c5c..ec82abc3aa 100644
--- a/inferencex-e2e/perf-changelog.yaml
+++ b/inferencex-e2e/perf-changelog.yaml
@@ -11556,3 +11556,10 @@
     - "Disagg: 6 DEP2 prefill workers with a DEP8 decode at conc 280-360 or a DEP16 decode at conc 300; DeepGEMM MegaMoE, NIXL transfer plus a shared MooncakeStore DRAM pool (160 GB per rank), Dynamo KV router."
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/4468
   scenario-type: [agentic-coding]
+
+- config-keys:
+    - dsv41flash-fp4-h200-sglang-agentic-dspark
+  scenario-type: [agentic-coding]
+  description:
+    - "Update the H200 SGLang image from nightly-dev-cu13-20261013-7224fce1 to nightly-dev-cu13-20261028-586355a8."
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/4597