diff --git a/backend/bin/pruneOldStoredData.ts b/backend/bin/pruneOldStoredData.ts
index 27633c9b5..c32983461 100644
--- a/backend/bin/pruneOldStoredData.ts
+++ b/backend/bin/pruneOldStoredData.ts
@@ -1,5 +1,6 @@
 import { PruneOldStoredDataError } from "../lib/errors"
 import sentryLogger from "../lib/logger"
+import prisma from "../prisma"
 import Knex from "../services/knex"
 
 const logger = sentryLogger({ service: "prune-old-stored-data" })
diff --git a/backend/schema/User/model.ts b/backend/schema/User/model.ts
index 75dc194ca..a45ace7bc 100644
--- a/backend/schema/User/model.ts
+++ b/backend/schema/User/model.ts
@@ -523,7 +523,7 @@ export const User = objectType({
           const courseHandlerIds = nonTiered
             .map((c) => c.course_id)
             .concat(Object.keys(tierCourseMap))
-          const completions = await prisma.completion.findMany({
+          const completions = await ctx.prisma.completion.findMany({
             where: {
               user_id: id,
               course_id: {