diff --git a/langchain/utilities/loading.py b/langchain/utilities/loading.py
index 45569e4a..f694c1a1 100644
--- a/langchain/utilities/loading.py
+++ b/langchain/utilities/loading.py
@@ -3,7 +3,7 @@
 import os
 import re
 import tempfile
-from pathlib import Path
+from pathlib import Path, PurePosixPath
 from typing import Any, Callable, Optional, Set, TypeVar, Union
 from urllib.parse import urljoin
 
@@ -16,7 +16,6 @@ URL_BASE = os.environ.get(
 )
 HUB_PATH_RE = re.compile(r"lc(?P<ref>@[^:]+)?://(?P<path>.*)")
 
-
 T = TypeVar("T")
 
 
@@ -38,7 +37,13 @@ def try_load_from_hub(
     if remote_path.suffix[1:] not in valid_suffixes:
         raise ValueError("Unsupported file type.")
 
-    full_url = urljoin(URL_BASE.format(ref=ref), str(remote_path))
+    # Using Path with URLs is not recommended, because on Windows
+    # the backslash is used as the path separator, which can cause issues
+    # when working with URLs that use forward slashes as the path separator.
+    # Instead, use PurePosixPath to ensure that forward slashes are used as the
+    # path separator, regardless of the operating system.
+    full_url = urljoin(URL_BASE.format(ref=ref), PurePosixPath(remote_path).__str__())
+
     r = requests.get(full_url, timeout=5)
     if r.status_code != 200:
         raise ValueError(f"Could not find file at {full_url}")
diff --git a/poetry.lock b/poetry.lock
index e4713722..0175549d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.1 and should not be changed by hand.
 
 [[package]]
 name = "absl-py"
@@ -6314,14 +6314,14 @@ files = [
 
 [[package]]
 name = "setuptools"
-version = "67.6.0"
+version = "67.6.1"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
 category = "main"
-optional = true
+optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "setuptools-67.6.0-py3-none-any.whl", hash = "sha256:b78aaa36f6b90a074c1fa651168723acbf45d14cb1196b6f02c0fd07f17623b2"},
-    {file = "setuptools-67.6.0.tar.gz", hash = "sha256:2ee892cd5f29f3373097f5a814697e397cf3ce313616df0af11231e2ad118077"},
+    {file = "setuptools-67.6.1-py3-none-any.whl", hash = "sha256:e728ca814a823bf7bf60162daf9db95b93d532948c4c0bea762ce62f60189078"},
+    {file = "setuptools-67.6.1.tar.gz", hash = "sha256:257de92a9d50a60b8e22abfcbb771571fde0dbf3ec234463212027a4eeecbe9a"},
 ]
 
 [package.extras]
@@ -6826,7 +6826,7 @@ files = [
 ]
 
 [package.dependencies]
-greenlet = {version = "!=0.4.17", markers = "python_version >= \"3\" and (platform_machine == \"aarch64\" or platform_machine == \"ppc64le\" or platform_machine == \"x86_64\" or platform_machine == \"amd64\" or platform_machine == \"AMD64\" or platform_machine == \"win32\" or platform_machine == \"WIN32\")"}
+greenlet = {version = "!=0.4.17", markers = "python_version >= \"3\" and platform_machine == \"aarch64\" or python_version >= \"3\" and platform_machine == \"ppc64le\" or python_version >= \"3\" and platform_machine == \"x86_64\" or python_version >= \"3\" and platform_machine == \"amd64\" or python_version >= \"3\" and platform_machine == \"AMD64\" or python_version >= \"3\" and platform_machine == \"win32\" or python_version >= \"3\" and platform_machine == \"WIN32\""}
 
 [package.extras]
 aiomysql = ["aiomysql", "greenlet (!=0.4.17)"]
@@ -8486,10 +8486,10 @@ docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker
 testing = ["big-O", "flake8 (<5)", "jaraco.functools", "jaraco.itertools", "more-itertools", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)"]
 
 [extras]
-all = ["anthropic", "cohere", "openai", "nlpcloud", "huggingface_hub", "jina", "manifest-ml", "elasticsearch", "opensearch-py", "google-search-results", "faiss-cpu", "sentence-transformers", "transformers", "spacy", "nltk", "wikipedia", "beautifulsoup4", "tiktoken", "torch", "jinja2", "pinecone-client", "weaviate-client", "redis", "google-api-python-client", "wolframalpha", "qdrant-client", "tensorflow-text", "pypdf", "networkx", "nomic", "aleph-alpha-client", "deeplake", "pgvector", "psycopg2-binary"]
-llms = ["anthropic", "cohere", "openai", "nlpcloud", "huggingface_hub", "manifest-ml", "torch", "transformers"]
+all = ["aleph-alpha-client", "anthropic", "beautifulsoup4", "boto3", "cohere", "deeplake", "elasticsearch", "faiss-cpu", "google-api-python-client", "google-search-results", "huggingface_hub", "jina", "jinja2", "manifest-ml", "networkx", "nlpcloud", "nltk", "nomic", "openai", "opensearch-py", "pgvector", "pinecone-client", "psycopg2-binary", "pyowm", "pypdf", "qdrant-client", "redis", "sentence-transformers", "spacy", "tensorflow-text", "tiktoken", "torch", "transformers", "weaviate-client", "wikipedia", "wolframalpha"]
+llms = ["anthropic", "cohere", "huggingface_hub", "manifest-ml", "nlpcloud", "openai", "torch", "transformers"]
 
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8.1,<4.0"
-content-hash = "3dd7ff0edb145aff1ba1ea7e35ffa4b224fb71f934be0e13d4427fd796e54869"
+content-hash = "439617c4bd1c55ff951f0b79c5953ff2002e50aadd6452449ecd9d9e900bde17"
diff --git a/pyproject.toml b/pyproject.toml
index 25407850..f1c7de6e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -99,6 +99,7 @@ optional = true
 [tool.poetry.group.dev.dependencies]
 jupyter = "^1.0.0"
 playwright = "^1.28.0"
+setuptools = "^67.6.1"
 
 [tool.poetry.extras]
 llms = ["anthropic", "cohere", "openai", "nlpcloud", "huggingface_hub", "manifest-ml", "torch", "transformers"]