diff --git a/pages/dashboard/dashboard.go b/pages/dashboard/dashboard.go
index d0ec0cfd..dbf5fbde 100644
--- a/pages/dashboard/dashboard.go
+++ b/pages/dashboard/dashboard.go
@@ -53,6 +53,7 @@ func Get(ctx *aero.Context) string {
 		}
 
 		animeList = animeList.Watching()
+		animeList.Lock()
 
 		for _, item := range animeList.Items {
 			futureEpisodes := item.Anime().UpcomingEpisodes()
@@ -64,6 +65,8 @@ func Get(ctx *aero.Context) string {
 			upcomingEpisodes = append(upcomingEpisodes, futureEpisodes...)
 		}
 
+		animeList.Unlock()
+
 		sort.Slice(upcomingEpisodes, func(i, j int) bool {
 			return upcomingEpisodes[i].Episode.AiringDate.Start < upcomingEpisodes[j].Episode.AiringDate.Start
 		})
diff --git a/pages/profile/profile.go b/pages/profile/profile.go
index e8dda8e0..e8dfc1a7 100644
--- a/pages/profile/profile.go
+++ b/pages/profile/profile.go
@@ -39,6 +39,9 @@ func Profile(ctx *aero.Context, viewUser *arn.User) string {
 		animeList = viewUser.AnimeList()
 
 		// Sort by rating
+		animeList.Lock()
+		defer animeList.Unlock()
+
 		sort.Slice(animeList.Items, func(i, j int) bool {
 			return animeList.Items[i].Rating.Overall > animeList.Items[j].Rating.Overall
 		})
diff --git a/pages/profile/stats.go b/pages/profile/stats.go
index 9cdbaf37..43db80f8 100644
--- a/pages/profile/stats.go
+++ b/pages/profile/stats.go
@@ -33,6 +33,9 @@ func GetStatsByUser(ctx *aero.Context) string {
 		return ctx.Error(http.StatusInternalServerError, "Anime list not found", err)
 	}
 
+	animeList.Lock()
+	defer animeList.Unlock()
+
 	for _, item := range animeList.Items {
 		currentWatch := item.Episodes * item.Anime().EpisodeLength
 		reWatch := item.RewatchCount * item.Anime().EpisodeCount * item.Anime().EpisodeLength