diff --git a/requirements.in b/requirements.in
index 4081a8d..2694ec9 100644
--- a/requirements.in
+++ b/requirements.in
@@ -2,7 +2,7 @@ ArchivesSnake==0.9.1
 Django==4.0.3
 django-cors-headers==3.11.0
 djangorestframework==3.13.1
-inflect==5.4.0
+inflect==6.0.0
 ordered-set==4.1.0
 psycopg2-binary==2.9.3
 requests==2.27.1
diff --git a/requirements.txt b/requirements.txt
index 150ce07..07f358e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ idna==3.3
     # via
     #   requests
     #   yarl
-inflect==5.4.0
+inflect==6.0.0
     # via -r requirements.in
 jarowinkler==1.0.1
     # via rapidfuzz
@@ -41,6 +41,8 @@ ordered-set==4.1.0
     # via -r requirements.in
 psycopg2-binary==2.9.3
     # via -r requirements.in
+pydantic==1.9.2
+    # via inflect
 pytz==2021.3
     # via djangorestframework
 pyyaml==6.0
@@ -61,6 +63,8 @@ sqlparse==0.4.2
     # via django
 structlog==21.5.0
     # via archivessnake
+typing-extensions==4.3.0
+    # via pydantic
 urllib3==1.26.8
     # via requests
 vcrpy==4.1.1