diff --git a/changelog.d/atom-leak.skip b/changelog.d/atom-leak.skip
new file mode 100644
index 000000000..e69de29bb
diff --git a/lib/pleroma/password/pbkdf2.ex b/lib/pleroma/password/pbkdf2.ex
index 92e9e1952..9c6d2e381 100644
--- a/lib/pleroma/password/pbkdf2.ex
+++ b/lib/pleroma/password/pbkdf2.ex
@@ -28,7 +28,7 @@ defmodule Pleroma.Password.Pbkdf2 do
 
     iterations = String.to_integer(iterations)
 
-    digest = String.to_atom(digest)
+    digest = String.to_existing_atom(digest)
 
     binary_hash =
       KeyGenerator.generate(password, salt, digest: digest, iterations: iterations, length: 64)
diff --git a/lib/pleroma/workers/background_worker.ex b/lib/pleroma/workers/background_worker.ex
index 794417612..7a2210dc1 100644
--- a/lib/pleroma/workers/background_worker.ex
+++ b/lib/pleroma/workers/background_worker.ex
@@ -28,7 +28,7 @@ defmodule Pleroma.Workers.BackgroundWorker do
   def perform(%Job{args: %{"op" => op, "user_id" => user_id, "identifiers" => identifiers}})
       when op in ["blocks_import", "follow_import", "mutes_import"] do
     user = User.get_cached_by_id(user_id)
-    {:ok, User.Import.perform(String.to_atom(op), user, identifiers)}
+    {:ok, User.Import.perform(String.to_existing_atom(op), user, identifiers)}
   end
 
   def perform(%Job{