diff --git a/backend/Pipfile.lock b/backend/Pipfile.lock
index 095d1acb..eeee8435 100644
--- a/backend/Pipfile.lock
+++ b/backend/Pipfile.lock
@@ -168,7 +168,7 @@
         },
         "codeforlife": {
             "git": "https://github.com/ocadotechnology/codeforlife-package-python.git",
-            "ref": "78c5b17988d899b2677f4a7d3a12408077d83351"
+            "ref": "143249578faf25e4163dde1e2f0be222b092b67f"
         },
         "codeforlife-portal": {
             "hashes": [
@@ -806,7 +806,6 @@
                 "sha256:a6f5977418eff3b2d5500d54d9db50c8277a368436f4e4f8ddb1be3422870184",
                 "sha256:f91456ead12ab3c6c2e9491cf33ba6d08357d802192379bb482f1033ade496f5"
             ],
-            "markers": "python_version >= '3.6'",
             "version": "==3.1.2"
         },
         "pandas": {
@@ -1305,7 +1304,6 @@
                 "sha256:6a33ee89877bd9abc1158129f6e94be74e2679636b8a205b43b85206c3f0bbdd",
                 "sha256:f72f148f54442c6b056bf931dbc34f986fd0c3b0b6b5a58d013c9aef274d0c88"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
             "version": "==2.0.1"
         },
         "xlwt": {
@@ -1514,7 +1512,7 @@
         },
         "codeforlife": {
             "git": "https://github.com/ocadotechnology/codeforlife-package-python.git",
-            "ref": "78c5b17988d899b2677f4a7d3a12408077d83351"
+            "ref": "143249578faf25e4163dde1e2f0be222b092b67f"
         },
         "codeforlife-portal": {
             "hashes": [
@@ -2186,7 +2184,6 @@
                 "sha256:a6f5977418eff3b2d5500d54d9db50c8277a368436f4e4f8ddb1be3422870184",
                 "sha256:f91456ead12ab3c6c2e9491cf33ba6d08357d802192379bb482f1033ade496f5"
             ],
-            "markers": "python_version >= '3.6'",
             "version": "==3.1.2"
         },
         "packaging": {
@@ -2495,6 +2492,7 @@
                 "sha256:c7c6ca206e93355074ae32f7403e8ea12163b1163c976fee7d4d84027c162be5",
                 "sha256:d45e0952f3727241918b8fd0f376f5ff6b301cc0777c6f9a556935c92d8a7d42"
             ],
+            "markers": "python_version >= '3.7'",
             "version": "==7.2.1"
         },
         "pytest-cov": {
@@ -2897,7 +2895,6 @@
                 "sha256:6a33ee89877bd9abc1158129f6e94be74e2679636b8a205b43b85206c3f0bbdd",
                 "sha256:f72f148f54442c6b056bf931dbc34f986fd0c3b0b6b5a58d013c9aef274d0c88"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'",
             "version": "==2.0.1"
         },
         "xlwt": {
diff --git a/backend/api/fixtures/independent.json b/backend/api/fixtures/independent.json
deleted file mode 100644
index 2bd37483..00000000
--- a/backend/api/fixtures/independent.json
+++ /dev/null
@@ -1,29 +0,0 @@
-[
-  {
-    "model": "auth.user",
-    "pk": 28,
-    "fields": {
-      "first_name": "Indy",
-      "last_name": "Man",
-      "username": "indy@man.com",
-      "email": "indy@man.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 28,
-    "fields": {
-      "user": 28,
-      "is_verified": true
-    }
-  },
-  {
-    "model": "common.student",
-    "pk": 18,
-    "fields": {
-      "user": 28,
-      "new_user": 28
-    }
-  }
-]
diff --git a/backend/api/fixtures/non_school_teacher.json b/backend/api/fixtures/non_school_teacher.json
deleted file mode 100644
index bfaacaf5..00000000
--- a/backend/api/fixtures/non_school_teacher.json
+++ /dev/null
@@ -1,29 +0,0 @@
-[
-  {
-    "model": "auth.user",
-    "pk": 22,
-    "fields": {
-      "first_name": "John",
-      "last_name": "Doe",
-      "username": "teacher@noschool.com",
-      "email": "teacher@noschool.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 22,
-    "fields": {
-      "user": 22,
-      "is_verified": true
-    }
-  },
-  {
-    "model": "common.teacher",
-    "pk": 5,
-    "fields": {
-      "user": 22,
-      "new_user": 22
-    }
-  }
-]
\ No newline at end of file
diff --git a/backend/api/fixtures/school_1.json b/backend/api/fixtures/school_1.json
deleted file mode 100644
index c72454e6..00000000
--- a/backend/api/fixtures/school_1.json
+++ /dev/null
@@ -1,154 +0,0 @@
-[
-  {
-    "model": "common.school",
-    "pk": 2,
-    "fields": {
-      "name": "School 1",
-      "country": "GB",
-      "county": "Hertfordshire"
-    }
-  },
-  {
-    "model": "auth.user",
-    "pk": 23,
-    "fields": {
-      "first_name": "John",
-      "last_name": "Doe",
-      "username": "teacher@school1.com",
-      "email": "teacher@school1.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 23,
-    "fields": {
-      "user": 23,
-      "is_verified": true
-    }
-  },
-  {
-    "model": "common.teacher",
-    "pk": 6,
-    "fields": {
-      "user": 23,
-      "new_user": 23,
-      "school": 2
-    }
-  },
-  {
-    "model": "common.class",
-    "pk": 6,
-    "fields": {
-      "name": "Class 1 @ School 1",
-      "access_code": "ZZ111",
-      "teacher": 6
-    }
-  },
-  {
-    "model": "auth.user",
-    "pk": 27,
-    "fields": {
-      "first_name": "Student1",
-      "username": "111111111111111111111111111111",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 27,
-    "fields": {
-      "user": 27,
-      "is_verified": true
-    }
-  },
-  {
-    "model": "common.student",
-    "pk": 17,
-    "fields": {
-      "user": 27,
-      "new_user": 27,
-      "class_field": 6
-    }
-  },
-  {
-    "model": "auth.user",
-    "pk": 24,
-    "fields": {
-      "first_name": "Jane",
-      "last_name": "Doe",
-      "username": "admin.teacher@school1.com",
-      "email": "admin.teacher@school1.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 24,
-    "fields": {
-      "user": 24,
-      "is_verified": true
-    }
-  },
-  {
-    "model": "common.teacher",
-    "pk": 7,
-    "fields": {
-      "user": 24,
-      "new_user": 24,
-      "school": 2,
-      "is_admin": true
-    }
-  },
-  {
-    "model": "common.class",
-    "pk": 7,
-    "fields": {
-      "name": "Class 2 @ School 1",
-      "access_code": "ZZ222",
-      "teacher": 7
-    }
-  },
-  {
-    "model": "common.schoolteacherinvitation",
-    "pk": 1,
-    "fields": {
-      "token": "pbkdf2_sha256$260000$hbsAadmrRo744BTM6NofUb$ePs/7vi6sSzOPpiWxNhXMZnNnE7aXOpzIhxrAa/rdiU=",
-      "school": 2,
-      "from_teacher": 7,
-      "invited_teacher_first_name": "Invited",
-      "invited_teacher_last_name": "Teacher",
-      "invited_teacher_email": "invited@teacher.com",
-      "invited_teacher_is_admin": false,
-      "expiry": "2024-02-09 20:26:08.298402+00:00"
-    }
-  },
-  {
-    "model": "common.schoolteacherinvitation",
-    "pk": 2,
-    "fields": {
-      "token": "pbkdf2_sha256$260000$hbsAadmrRo744BTM6NofUb$ePs/7vi6sSzOPpiWxNhXMZnNnE7aXOpzIhxrAa/rdiU=",
-      "school": 2,
-      "from_teacher": 7,
-      "invited_teacher_first_name": "Invited",
-      "invited_teacher_last_name": "Teacher",
-      "invited_teacher_email": "invited@teacher.com",
-      "invited_teacher_is_admin": false,
-      "expiry": "9999-02-09 20:26:08.298402+00:00"
-    }
-  },
-  {
-    "model": "common.schoolteacherinvitation",
-    "pk": 3,
-    "fields": {
-      "token": "pbkdf2_sha256$260000$hbsAadmrRo744BTM6NofUb$ePs/7vi6sSzOPpiWxNhXMZnNnE7aXOpzIhxrAa/rdiU=",
-      "school": 2,
-      "from_teacher": 7,
-      "invited_teacher_first_name": "Invited",
-      "invited_teacher_last_name": "Teacher",
-      "invited_teacher_email": "teacher@school1.com",
-      "invited_teacher_is_admin": false,
-      "expiry": "9999-02-09 20:26:08.298402+00:00"
-    }
-  }
-]
diff --git a/backend/api/fixtures/school_2.json b/backend/api/fixtures/school_2.json
deleted file mode 100644
index 7e6e5dae..00000000
--- a/backend/api/fixtures/school_2.json
+++ /dev/null
@@ -1,104 +0,0 @@
-[
-  {
-    "model": "common.school",
-    "pk": 3,
-    "fields": {
-      "name": "School 2",
-      "country": "GB",
-      "county": "Hertfordshire"
-    }
-  },
-  {
-    "model": "auth.user",
-    "pk": 25,
-    "fields": {
-      "first_name": "John",
-      "last_name": "Doe",
-      "username": "teacher@school2.com",
-      "email": "teacher@school2.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 25,
-    "fields": {
-      "user": 25,
-      "is_verified": true,
-      "otp_secret": "KI6FA34LPRQU265KQBFYS2MTDYHE2EIG"
-    }
-  },
-  {
-    "model": "user.authfactor",
-    "pk": 1,
-    "fields": {
-      "user": 25,
-      "type": "otp"
-    }
-  },
-  {
-    "model": "common.teacher",
-    "pk": 8,
-    "fields": {
-      "user": 25,
-      "new_user": 25,
-      "school": 3
-    }
-  },
-  {
-    "model": "common.class",
-    "pk": 8,
-    "fields": {
-      "name": "Class 1 @ School 2",
-      "access_code": "XX111",
-      "teacher": 8
-    }
-  },
-  {
-    "model": "auth.user",
-    "pk": 26,
-    "fields": {
-      "first_name": "Jane",
-      "last_name": "Doe",
-      "username": "admin.teacher@school2.com",
-      "email": "admin.teacher@school2.com",
-      "password": "pbkdf2_sha256$720000$Jp50WPBA6WZImUIpj3UcVm$OJWB8+UoW5lLaUkHLYo0cKgMkyRI6qnqVOWxYEsi9T0="
-    }
-  },
-  {
-    "model": "common.userprofile",
-    "pk": 26,
-    "fields": {
-      "user": 26,
-      "is_verified": true,
-      "otp_secret": "KI6FA34LPRQU265KQBFYS2MTDYHE2EIG"
-    }
-  },
-  {
-    "model": "user.authfactor",
-    "pk": 2,
-    "fields": {
-      "user": 26,
-      "type": "otp"
-    }
-  },
-  {
-    "model": "common.teacher",
-    "pk": 9,
-    "fields": {
-      "user": 26,
-      "new_user": 26,
-      "school": 3,
-      "is_admin": true
-    }
-  },
-  {
-    "model": "common.class",
-    "pk": 9,
-    "fields": {
-      "name": "Class 2 @ School 2",
-      "access_code": "XX222",
-      "teacher": 9
-    }
-  }
-]
\ No newline at end of file