diff --git a/requirements/base.txt b/requirements/base.txt
index 9df5ad71..ce367656 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,7 +1,7 @@
 playwright
 playwright-stealth
 pydantic
-pydantic-ai-slim[openai,anthropic,google,groq,mistral,cohere,bedrock]
+pydantic-ai-slim[cohere,google,openai,bedrock,groq,anthropic,mistral]==1.98.0
 # pydantic-ai 1.96 imports `from griffe import ...`, but griffe 2.x split into an
 # empty `griffelib` meta-package and reorganized symbols. Pin until upstream fixes.
 griffe>=1,<2