diff --git a/test/images/node-perf/npb-ep/Dockerfile b/test/images/node-perf/npb-ep/Dockerfile
index a33e2df586f..b808f6742ef 100644
--- a/test/images/node-perf/npb-ep/Dockerfile
+++ b/test/images/node-perf/npb-ep/Dockerfile
@@ -20,7 +20,8 @@ CROSS_BUILD_COPY qemu-QEMUARCH-static /usr/bin/
 RUN apt-get update && apt-get install -y libc6-dev g++ bzip2 dpkg-dev build-essential gfortran
 
 ADD http://www.nas.nasa.gov/assets/npb/NPB3.4.3.tar.gz .
-RUN tar xzf NPB3.4.3.tar.gz
+# Fix permissions for cross-build with QEMU emulation
+RUN tar xzf NPB3.4.3.tar.gz && chmod -R a+rX NPB3.4.3
 
 WORKDIR ./NPB3.4.3/NPB3.4-OMP
 RUN if [ $(arch) != "x86_64" ]; then \
diff --git a/test/images/node-perf/npb-ep/VERSION b/test/images/node-perf/npb-ep/VERSION
index c068b2447cc..c239c60cba2 100644
--- a/test/images/node-perf/npb-ep/VERSION
+++ b/test/images/node-perf/npb-ep/VERSION
@@ -1 +1 @@
-1.4
+1.5
diff --git a/test/images/node-perf/npb-is/Dockerfile b/test/images/node-perf/npb-is/Dockerfile
index 0acb792b450..9f85deae60e 100644
--- a/test/images/node-perf/npb-is/Dockerfile
+++ b/test/images/node-perf/npb-is/Dockerfile
@@ -20,7 +20,8 @@ CROSS_BUILD_COPY qemu-QEMUARCH-static /usr/bin/
 RUN apt-get update && apt-get install -y build-essential gfortran
 
 ADD http://www.nas.nasa.gov/assets/npb/NPB3.3.1.tar.gz .
-RUN tar xzf NPB3.3.1.tar.gz
+# Fix permissions for cross-build with QEMU emulation
+RUN tar xzf NPB3.3.1.tar.gz && chmod -R a+rX NPB3.3.1
 
 WORKDIR ./NPB3.3.1/NPB3.3-OMP
 
diff --git a/test/images/node-perf/npb-is/VERSION b/test/images/node-perf/npb-is/VERSION
index 7e32cd56983..c068b2447cc 100644
--- a/test/images/node-perf/npb-is/VERSION
+++ b/test/images/node-perf/npb-is/VERSION
@@ -1 +1 @@
-1.3
+1.4