diff --git a/pyproject.toml b/pyproject.toml
index 95215e2e..8ca11ae9 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "mlpstorage"
-version = "3.0.7"
+version = "3.0.9"
 description = "MLPerf Storage Benchmark Suite"
 readme = "README.md"
 license = {text = "Apache-2.0"}
@@ -122,7 +122,9 @@ environments = ["sys_platform == 'linux'"]
 torch = [{ index = "pytorch-cpu" }]
 torchvision = [{ index = "pytorch-cpu" }]
 torchaudio = [{ index = "pytorch-cpu" }]
-dlio-benchmark = { git = "https://github.com/mlcommons/DLIO_local_changes.git", branch = "main" }
+# Pinned to PR #22 head (fix for issue #415: mpi4py auto-init aborts in PyTorch
+# DataLoader spawn-workers). Revert to branch = "main" once the PR merges upstream.
+dlio-benchmark = { git = "https://github.com/mlcommons/DLIO_local_changes.git", rev = "60fd3b8e7ae9cc8be644b47df0661366ac2c8bd6" }
 
 [dependency-groups]
 dev = [
diff --git a/uv.lock b/uv.lock
index 3f339085..ef8236da 100644
--- a/uv.lock
+++ b/uv.lock
@@ -237,7 +237,7 @@ wheels = [
 [[package]]
 name = "dlio-benchmark"
 version = "3.0.2"
-source = { git = "https://github.com/mlcommons/DLIO_local_changes.git?branch=main#e4c9b7aa3ffa96fae0054b92ea6629996dbd5f23" }
+source = { git = "https://github.com/mlcommons/DLIO_local_changes.git?rev=60fd3b8e7ae9cc8be644b47df0661366ac2c8bd6#60fd3b8e7ae9cc8be644b47df0661366ac2c8bd6" }
 dependencies = [
     { name = "dgen-py", marker = "sys_platform == 'linux'" },
     { name = "h5py", marker = "sys_platform == 'linux'" },
@@ -518,7 +518,7 @@ wheels = [
 
 [[package]]
 name = "mlpstorage"
-version = "3.0.7"
+version = "3.0.9"
 source = { editable = "." }
 dependencies = [
     { name = "dlio-benchmark", marker = "sys_platform == 'linux'" },
@@ -583,8 +583,8 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "dlio-benchmark", git = "https://github.com/mlcommons/DLIO_local_changes.git?branch=main" },
-    { name = "dlio-benchmark", marker = "extra == 'full'", git = "https://github.com/mlcommons/DLIO_local_changes.git?branch=main" },
+    { name = "dlio-benchmark", git = "https://github.com/mlcommons/DLIO_local_changes.git?rev=60fd3b8e7ae9cc8be644b47df0661366ac2c8bd6" },
+    { name = "dlio-benchmark", marker = "extra == 'full'", git = "https://github.com/mlcommons/DLIO_local_changes.git?rev=60fd3b8e7ae9cc8be644b47df0661366ac2c8bd6" },
     { name = "elasticsearch", marker = "extra == 'vectordb'", specifier = ">=8.0" },
     { name = "elasticsearch", marker = "extra == 'vectordb-elasticsearch'", specifier = ">=8.0" },
     { name = "minio", specifier = ">=7.2.20" },