diff --git a/examples/code_embedding/pyproject.toml b/examples/code_embedding/pyproject.toml
index 40d474b9..3777e8e7 100644
--- a/examples/code_embedding/pyproject.toml
+++ b/examples/code_embedding/pyproject.toml
@@ -3,4 +3,4 @@ name = "code-embedding"
 version = "0.1.0"
 description = "Simple example for cocoindex: build embedding index based on source code."
 requires-python = ">=3.10"
-dependencies = ["cocoindex>=0.1.4", "python-dotenv>=1.0.1"]
+dependencies = ["cocoindex>=0.1.6", "python-dotenv>=1.0.1"]
diff --git a/examples/manual_extraction/pyproject.toml b/examples/manual_extraction/pyproject.toml
index 17b9084b..79dff53a 100644
--- a/examples/manual_extraction/pyproject.toml
+++ b/examples/manual_extraction/pyproject.toml
@@ -3,4 +3,4 @@ name = "manual-extraction"
 version = "0.1.0"
 description = "Simple example for cocoindex: extract manual information from a Markdown."
 requires-python = ">=3.10"
-dependencies = ["cocoindex>=0.1.4", "python-dotenv>=1.0.1", "marker-pdf>=1.5.2"]
+dependencies = ["cocoindex>=0.1.6", "python-dotenv>=1.0.1", "marker-pdf>=1.5.2"]
diff --git a/examples/pdf_embedding/pyproject.toml b/examples/pdf_embedding/pyproject.toml
index 1707c27f..21f0891c 100644
--- a/examples/pdf_embedding/pyproject.toml
+++ b/examples/pdf_embedding/pyproject.toml
@@ -3,4 +3,4 @@ name = "pdf-embedding"
 version = "0.1.0"
 description = "Simple example for cocoindex: build embedding index based on local PDF files."
 requires-python = ">=3.10"
-dependencies = ["cocoindex>=0.1.4", "python-dotenv>=1.0.1", "marker-pdf>=1.5.2"]
+dependencies = ["cocoindex>=0.1.6", "python-dotenv>=1.0.1", "marker-pdf>=1.5.2"]
diff --git a/examples/text_embedding/pyproject.toml b/examples/text_embedding/pyproject.toml
index 2287dccd..7bf3e967 100644
--- a/examples/text_embedding/pyproject.toml
+++ b/examples/text_embedding/pyproject.toml
@@ -3,4 +3,4 @@ name = "text-embedding"
 version = "0.1.0"
 description = "Simple example for cocoindex: build embedding index based on local text files."
 requires-python = ">=3.10"
-dependencies = ["cocoindex>=0.1.4", "python-dotenv>=1.0.1"]
+dependencies = ["cocoindex>=0.1.6", "python-dotenv>=1.0.1"]