diff --git a/test/images/node-perf/npb-is/BASEIMAGE b/test/images/node-perf/npb-is/BASEIMAGE
index 96b0b3ab3e0..8369e13c780 100644
--- a/test/images/node-perf/npb-is/BASEIMAGE
+++ b/test/images/node-perf/npb-is/BASEIMAGE
@@ -1,4 +1,2 @@
 linux/amd64=debian:bookworm-slim
 linux/arm64=arm64v8/debian:bookworm-slim
-linux/ppc64le=ppc64le/debian:bookworm-slim
-linux/s390x=s390x/debian:bookworm-slim
diff --git a/test/images/node-perf/npb-is/Dockerfile b/test/images/node-perf/npb-is/Dockerfile
index 7b959702ceb..4fd5de286e8 100644
--- a/test/images/node-perf/npb-is/Dockerfile
+++ b/test/images/node-perf/npb-is/Dockerfile
@@ -31,13 +31,11 @@ RUN sed -i '1i#!/bin/sh' sys/print_header sys/print_instructions
 
 # Create build config based on the architecture and build the workload.
 # arm64 requires special flags to avoid relocation overflow with large binaries:
-#   -mcmodel=large: use large code model for > 4GB address space
+#   -mcmodel=large: use large code model for address space beyond default limits
 #   -fno-PIE: disable position-independent executable (incompatible with large model)
 #   -mno-outline-atomics: inline atomics to avoid linker issues
 RUN if [ $(arch) = "aarch64" ]; then \
     sed 's/-mcmodel=medium/-mcmodel=large -fno-PIE -mno-outline-atomics/g' config/NAS.samples/make.def.gcc_x86 > config/make.def; \
-elif [ $(arch) != "x86_64" ]; then \
-    sed s/-mcmodel=medium//g config/NAS.samples/make.def.gcc_x86 > config/make.def; \
 else \
     cp config/NAS.samples/make.def.gcc_x86 config/make.def; \
 fi
diff --git a/test/images/node-perf/npb-is/VERSION b/test/images/node-perf/npb-is/VERSION
index dc1e644a101..bd8bf882d06 100644
--- a/test/images/node-perf/npb-is/VERSION
+++ b/test/images/node-perf/npb-is/VERSION
@@ -1 +1 @@
-1.6.0
+1.7.0