diff --git a/requirements.in b/requirements.in
index 7518f49a..fd99a19b 100644
--- a/requirements.in
+++ b/requirements.in
@@ -18,4 +18,4 @@ marshmallow==3.22.0
 pydantic==2.9.2
 pyOpenSSL==24.2.1
 pytz==2024.2
-signxml==3.2.2
+signxml==4.0.2
diff --git a/requirements.txt b/requirements.txt
index 18815cbe..ec9d6e61 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,9 +64,7 @@ pydantic==2.9.2
 pydantic-core==2.23.4
     # via pydantic
 pyopenssl==24.2.1
-    # via
-    #   -r requirements.in
-    #   signxml
+    # via -r requirements.in
 pytz==2024.2
     # via -r requirements.in
 referencing==0.35.1
@@ -77,7 +75,7 @@ rpds-py==0.19.0
     # via
     #   jsonschema
     #   referencing
-signxml==3.2.2
+signxml==4.0.2
     # via -r requirements.in
 sqlparse==0.5.0
     # via django