diff --git a/blockchain/requirements.txt b/blockchain/requirements.txt
index 058119f..7df3e20 100644
--- a/blockchain/requirements.txt
+++ b/blockchain/requirements.txt
@@ -7,7 +7,7 @@ ethereum==2.3.1
 web3==5.23.0
 
 # API dependencies
-fastapi==0.65.2
+fastapi==0.109.1
 uvicorn==0.13.4
 pydantic==1.9.0