diff --git a/constraints.txt b/constraints.txt
index bc0867a..0e9420e 100644
--- a/constraints.txt
+++ b/constraints.txt
@@ -14,10 +14,14 @@ certifi==2023.7.22
     # via
     #   requests
     #   selenium
+cffi==1.16.0
+    # via cryptography
 charset-normalizer==3.3.1
     # via requests
 confusable-homoglyphs==3.2.0
     # via django-registration
+cryptography==41.0.4
+    # via django-anymail
 django==4.2.6
     # via
     #   -r requirements.in
@@ -61,6 +65,8 @@ packaging==23.2
     # via gunicorn
 pillow==10.1.0
     # via -r requirements.in
+pycparser==2.21
+    # via cffi
 pysocks==1.7.1
     # via urllib3
 requests==2.31.0
diff --git a/requirements.txt b/requirements.txt
index f6c6264..bab4cf2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,10 +14,14 @@ certifi==2023.7.22
     # via
     #   requests
     #   selenium
+cffi==1.16.0
+    # via cryptography
 charset-normalizer==3.3.1
     # via requests
 confusable-homoglyphs==3.2.0
     # via django-registration
+cryptography==41.0.4
+    # via django-anymail
 django==4.2.6
     # via
     #   -r requirements.in
@@ -61,6 +65,8 @@ packaging==23.2
     # via gunicorn
 pillow==10.1.0
     # via -r requirements.in
+pycparser==2.21
+    # via cffi
 pysocks==1.7.1
     # via urllib3
 requests==2.31.0