diff --git a/pyproject.toml b/pyproject.toml
index 9a97197..27ae8ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ security = [
 ]
 examples = [
     "anthropic>=0.75.0",
-    "pydantic-ai>=1.38.0",
+    "pydantic-ai>=1.39.0",
     "matplotlib>=3.10.8",
     "rich>=14.2.0",
 ]
diff --git a/uv.lock b/uv.lock
index 4b5a360..2667ace 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2075,7 +2075,7 @@ dev = [
 examples = [
     { name = "anthropic", specifier = ">=0.75.0" },
     { name = "matplotlib", specifier = ">=3.10.8" },
-    { name = "pydantic-ai", specifier = ">=1.38.0" },
+    { name = "pydantic-ai", specifier = ">=1.39.0" },
     { name = "rich", specifier = ">=14.2.0" },
 ]
 security = [
@@ -2970,19 +2970,19 @@ email = [
 
 [[package]]
 name = "pydantic-ai"
-version = "1.38.0"
+version = "1.39.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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 ]
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 [[package]]
 name = "pydantic-ai-slim"
-version = "1.38.0"
+version = "1.39.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "genai-prices" },
@@ -2993,9 +2993,9 @@ dependencies = [
     { name = "pydantic-graph" },
     { name = "typing-inspection" },
 ]
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 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/2a/df/86381632be07b7df2e8e5880a1f18c6ee98122adf5848d329fee239a03b2/pydantic_ai_slim-1.39.0-py3-none-any.whl", hash = "sha256:8669d1781eba7713870bf76783e1e853577d5e55eb2986a27d49bc600889aaaf", size = 484906, upload-time = "2025-12-24T03:34:03.179Z" },
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 [package.optional-dependencies]
@@ -3044,6 +3044,7 @@ mistral = [
 ]
 openai = [
     { name = "openai" },
+    { name = "tiktoken" },
 ]
 retries = [
     { name = "tenacity" },
@@ -3114,7 +3115,7 @@ wheels = [
 
 [[package]]
 name = "pydantic-evals"
-version = "1.38.0"
+version = "1.39.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -3124,14 +3125,14 @@ dependencies = [
     { name = "pyyaml" },
     { name = "rich" },
 ]
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 [[package]]
 name = "pydantic-graph"
-version = "1.38.0"
+version = "1.39.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "httpx" },
@@ -3139,9 +3140,9 @@ dependencies = [
     { name = "pydantic" },
     { name = "typing-inspection" },
 ]
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 [[package]]