diff --git a/src/backend/prompt_api/requirements.txt b/src/backend/prompt_api/requirements.txt
index 6a61b9d..c41478a 100644
--- a/src/backend/prompt_api/requirements.txt
+++ b/src/backend/prompt_api/requirements.txt
@@ -1,5 +1,5 @@
 transformers==4.34.0
-flask==3.0.0
+flask==2.2.5
 requests==2.31.0
 sentencepiece==0.1.97
 gunicorn==21.2.0
diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 166ef1d..a14d5ad 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -1,3 +1,3 @@
-flask==2.0.3
+flask==2.2.5
 gunicorn==20.1.0
 requests==2.27.1