diff --git a/tools/dockerfile/Dockerfile.npu_aarch64 b/tools/dockerfile/Dockerfile.npu_aarch64
index e95ff951878c94d6f303e1f83ab9ae97930bddf7..9317311f2a8e51cd89bcd371b70689c7228989c6 100644
--- a/tools/dockerfile/Dockerfile.npu_aarch64
+++ b/tools/dockerfile/Dockerfile.npu_aarch64
@@ -96,6 +96,8 @@ RUN localedef -i en_US -f UTF-8 en_US.UTF-8
 
 RUN apt-get install libprotobuf-dev -y
 
+RUN apt install lsof -y
+
 # Older versions of patchelf limited the size of the files being processed and were fixed in this pr.
 # https://github.com/NixOS/patchelf/commit/ba2695a8110abbc8cc6baf0eea819922ee5007fa
 # So install a newer version here.
diff --git a/tools/dockerfile/Dockerfile.npu_x86_64 b/tools/dockerfile/Dockerfile.npu_x86_64
index 6689deedf4b3bf8bff357b3d51b4ea39f84c7082..160681a279f4c1f520a96874c87404427b37cdf7 100644
--- a/tools/dockerfile/Dockerfile.npu_x86_64
+++ b/tools/dockerfile/Dockerfile.npu_x86_64
@@ -96,6 +96,8 @@ RUN localedef -i en_US -f UTF-8 en_US.UTF-8
 
 RUN apt-get install libprotobuf-dev -y
 
+RUN apt install lsof -y
+
 # Older versions of patchelf limited the size of the files being processed and were fixed in this pr.
 # https://github.com/NixOS/patchelf/commit/ba2695a8110abbc8cc6baf0eea819922ee5007fa
 # So install a newer version here.