diff --git a/activities/services/search.py b/activities/services/search.py
index 9981363..e9a6920 100644
--- a/activities/services/search.py
+++ b/activities/services/search.py
@@ -94,7 +94,7 @@ class SearchService:
             return identity
 
         # Is it a post?
-        elif type == "note":
+        elif type in [value.lower() for value in Post.Types.values]:
             # Try and retrieve the post by URI
             # (we do not trust the JSON we just got - fetch from source!)
             try:
diff --git a/requirements-dev.txt b/requirements-dev.txt
index c0dbdc3..05e812d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 -r requirements.txt
 black==22.10.0
 flake8==5.0.4
-isort==5.10.1
+isort==5.12.0
 mock~=4.0.3
 pre-commit~=2.20.0
 pytest-asyncio~=0.20.2