diff --git a/backend/requirements.txt b/backend/requirements.txt
index af21a7c..8cca98d 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,5 +1,6 @@
-fastapi>=0.100.0
-uvicorn[standard]>=0.23.0
-duckdb>=0.9.0
-pydantic>=2.0.0
-python-multipart
\ No newline at end of file
+# DuckDB >=1.4 is required for the `unsafe_enable_version_guessing` setting
+# used by the Iceberg extension.
+fastapi==0.118.0
+uvicorn[standard]==0.37.0
+duckdb==1.4.1
+pydantic==2.12.0