diff --git a/llama-index-integrations/embeddings/llama-index-embeddings-openai/llama_index/embeddings/openai/base.py b/llama-index-integrations/embeddings/llama-index-embeddings-openai/llama_index/embeddings/openai/base.py
index eed401ddf91a911e77b72fdfee4b3fb5cc7c859b..d276c443c5149926e5eb4495458a8e98dd354bb4 100644
--- a/llama-index-integrations/embeddings/llama-index-embeddings-openai/llama_index/embeddings/openai/base.py
+++ b/llama-index-integrations/embeddings/llama-index-embeddings-openai/llama_index/embeddings/openai/base.py
@@ -246,10 +246,10 @@ class OpenAIEmbedding(BaseEmbedding):
     )
 
     api_key: str = Field(description="The OpenAI API key.")
-    api_base: str = Field(
+    api_base: Optional[str] = Field(
         default=DEFAULT_OPENAI_API_BASE, description="The base URL for OpenAI API."
     )
-    api_version: str = Field(
+    api_version: Optional[str] = Field(
         default=DEFAULT_OPENAI_API_VERSION, description="The version for OpenAI API."
     )
 
diff --git a/llama-index-integrations/embeddings/llama-index-embeddings-openai/pyproject.toml b/llama-index-integrations/embeddings/llama-index-embeddings-openai/pyproject.toml
index 383f7b9487d3f8600c2355792090b4c4ea897d11..9af72cbe4dc4b67382fe881939739d25c780be64 100644
--- a/llama-index-integrations/embeddings/llama-index-embeddings-openai/pyproject.toml
+++ b/llama-index-integrations/embeddings/llama-index-embeddings-openai/pyproject.toml
@@ -27,7 +27,7 @@ exclude = ["**/BUILD"]
 license = "MIT"
 name = "llama-index-embeddings-openai"
 readme = "README.md"
-version = "0.1.6"
+version = "0.1.7"
 
 [tool.poetry.dependencies]
 python = ">=3.8.1,<4.0"