diff --git a/mdl-ref-server/requirements.txt b/mdl-ref-server/requirements.txt
index b37bff428..f870a1352 100644
--- a/mdl-ref-server/requirements.txt
+++ b/mdl-ref-server/requirements.txt
@@ -7,7 +7,7 @@ cryptography==41.0.6
 idna==2.10
 Naked==0.1.31
 pycparser==2.20
-pycryptodome==3.10.1
+pycryptodome==3.19.1
 pycryptodomex==3.10.1
 PyYAML==5.4.1
 requests==2.31.0