diff --git a/examples/code_embedding/pyproject.toml b/examples/code_embedding/pyproject.toml
index dfd910f21..41b7d9191 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>=0.1.11", "python-dotenv>=1.0.1"]
+dependencies = ["cocoindex>=0.1.19", "python-dotenv>=1.0.1"]
diff --git a/examples/gdrive_text_embedding/pyproject.toml b/examples/gdrive_text_embedding/pyproject.toml
index 638b79e77..964a27578 100644
--- a/examples/gdrive_text_embedding/pyproject.toml
+++ b/examples/gdrive_text_embedding/pyproject.toml
@@ -3,4 +3,4 @@ name = "gdrive-text-embedding"
 version = "0.1.0"
 description = "Simple example for cocoindex: build embedding index based on Google Drive files."
 requires-python = ">=3.11"
-dependencies = ["cocoindex>=0.1.12", "python-dotenv>=1.0.1"]
+dependencies = ["cocoindex>=0.1.19", "python-dotenv>=1.0.1"]
diff --git a/examples/manuals_llm_extraction/pyproject.toml b/examples/manuals_llm_extraction/pyproject.toml
index c12e29d04..e098da920 100644
--- a/examples/manuals_llm_extraction/pyproject.toml
+++ b/examples/manuals_llm_extraction/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "Simple example for cocoindex: extract structured information from a Markdown file using LLM."
 requires-python = ">=3.10"
 dependencies = [
-    "cocoindex>=0.1.11",
+    "cocoindex>=0.1.19",
     "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 66af32a48..93b03bcb4 100644
--- a/examples/pdf_embedding/pyproject.toml
+++ b/examples/pdf_embedding/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 description = "Simple example for cocoindex: build embedding index based on local PDF files."
 requires-python = ">=3.10"
 dependencies = [
-    "cocoindex>=0.1.10",
+    "cocoindex>=0.1.19",
     "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 ee603d98a..8546886d1 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>=0.1.10", "python-dotenv>=1.0.1"]
+dependencies = ["cocoindex>=0.1.19", "python-dotenv>=1.0.1"]