diff --git a/insert_food_data.py b/insert_food_data.py
index a9a2603b..10f501bf 100644
--- a/insert_food_data.py
+++ b/insert_food_data.py
@@ -10,4 +10,4 @@
 
 for i in range(1, len(l)):
     temp = l[i].split(",")
-    mongo.db.food.insert({'food': temp[0], 'calories': temp[1]})
+    mongo.db.food.insert_one({'food': temp[0], 'calories': temp[1]})
diff --git a/requirements.txt b/requirements.txt
index c849055b..81ab8254 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-bcrypt==3.2.0
+bcrypt==4.0.1
 blinker==1.4
 bson==0.5.10
 certifi==1.0.1
@@ -19,7 +19,7 @@ Jinja2==3.0.1
 jwt==1.2.0
 MarkupSafe==2.0.1
 pycparser==2.20
-pymongo==3.11.3
+pymongo==4.5.0
 python-dateutil==2.8.2
 six==1.16.0
 tabulate==0.8.9
diff --git a/tests/application.py b/tests/application.py
index 2d26380a..a00d4adf 100644
--- a/tests/application.py
+++ b/tests/application.py
@@ -100,7 +100,7 @@ def register():
                 username = request.form.get('username')
                 email = request.form.get('email')
                 password = request.form.get('password')
-                mongo.db.user.insert({'name': username, 'email': email, 'pwd': bcrypt.hashpw(
+                mongo.db.user.insert_one({'name': username, 'email': email, 'pwd': bcrypt.hashpw(
                     password.encode("utf-8"), bcrypt.gensalt())})
             flash(f'Account created for {form.username.data}!', 'success')
             return redirect(url_for('home'))
@@ -168,13 +168,13 @@ def user_profile():
                 temp = mongo.db.profile.find_one({'email': email}, {
                     'height', 'weight', 'goal', 'target_weight'})
                 if temp is not None:
-                    mongo.db.profile.update({'email': email},
+                    mongo.db.profile.update_one({'email': email},
                                             {'$set': {'weight': temp['weight'],
                                                       'height': temp['height'],
                                                       'goal': temp['goal'],
                                                       'target_weight': temp['target_weight']}})
                 else:
-                    mongo.db.profile.insert({'email': email,
+                    mongo.db.profile.insert_one({'email': email,
                                              'height': height,
                                              'weight': weight,
                                              'goal': goal,