diff --git a/sql4housing/requirements.txt b/sql4housing/requirements.txt
index 5e4a586..34a6a1f 100644
--- a/sql4housing/requirements.txt
+++ b/sql4housing/requirements.txt
@@ -13,4 +13,4 @@ pyshp==2.1.0
 psycopg2==2.8.3
 python-Levenshtein==0.12.0
 cenpy==1.0.0.post2
-pyyaml==5.1
\ No newline at end of file
+pyyaml==5.4
\ No newline at end of file