diff --git a/Pipfile b/Pipfile
index a20cf44..d644621 100644
--- a/Pipfile
+++ b/Pipfile
@@ -9,10 +9,11 @@ name = "pypi"
 
 alembic = "*"
 brotli = ">=1.0.1"
+#celery = "~=4.4.2"
 celery = "*"
 csscompressor = "*"
 doit = "*"
-flask = "~=1.1"
+flask = ">=1.1"
 flask-migrate = "*"
 flask-sqlalchemy = "*"
 gunicorn = ">=19.8"
@@ -24,7 +25,7 @@ redis = "*"
 requests = "*"
 sqlalchemy = "*"
 twitter = "*"
-"mastodon.py" = "~=1.2"
+"mastodon.py" = ">=1.2"
 blinker = "*"
 
 
diff --git a/Pipfile.lock b/Pipfile.lock
index 0e7b366..917570f 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "4d0638b37783887460f4a487a9f61e9ea9b7ada021d4ce62c48946e4f304097e"
+            "sha256": "303bcf089bbe8f0553f850a13d4b6672225620532fe4813d061c45db0d940fc8"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -121,11 +121,11 @@
         },
         "celery": {
             "hashes": [
-                "sha256:8d9a3de9162965e97f8e8cc584c67aad83b3f7a267584fa47701ed11c3e0d4b0",
-                "sha256:9dab2170b4038f7bf10ef2861dbf486ddf1d20592290a1040f7b7a1259705d42"
+                "sha256:8aacd02fc23a02760686d63dde1eb0daa9f594e735e73ea8fb15c2ff15cb608c",
+                "sha256:e2cd41667ad97d4f6a2f4672d1c6a6ebada194c619253058b5f23704aaadaa82"
             ],
             "index": "pypi",
-            "version": "==5.1.2"
+            "version": "==5.2.3"
         },
         "certifi": {
             "hashes": [
@@ -144,11 +144,11 @@
         },
         "click": {
             "hashes": [
-                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
-                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
+                "sha256:6a7a62563bbfabfda3a38f3023a1db4a35978c0abd76f6c9605ecd6554d6d9b1",
+                "sha256:8458d7b1287c5fb128c90e23381cf99dcde74beaf6c7ff6384ce84d6fe090adb"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==7.1.2"
+            "markers": "python_version >= '3.6'",
+            "version": "==8.0.4"
         },
         "click-didyoumean": {
             "hashes": [
@@ -213,11 +213,11 @@
         },
         "flask": {
             "hashes": [
-                "sha256:0fbeb6180d383a9186d0d6ed954e0042ad9f18e0e8de088b2b419d526927d196",
-                "sha256:c34f04500f2cbbea882b1acb02002ad6fe6b7ffa64a6164577995657f50aed22"
+                "sha256:59da8a3170004800a2837844bfa84d49b022550616070f7cb1a659682b2e7c9f",
+                "sha256:e1120c228ca2f553b470df4a5fa927ab66258467526069981b3eb0a91902687d"
             ],
             "index": "pypi",
-            "version": "==1.1.4"
+            "version": "==2.0.3"
         },
         "flask-migrate": {
             "hashes": [
@@ -322,19 +322,19 @@
         },
         "itsdangerous": {
             "hashes": [
-                "sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19",
-                "sha256:b12271b2047cb23eeb98c8b5622e2e5c5e9abd9784a153e9d8ef9cb4dd09d749"
+                "sha256:29285842166554469a56d427addc0843914172343784cb909695fdbe90a3e129",
+                "sha256:d848fcb8bc7d507c4546b448574e8a44fc4ea2ba84ebf8d783290d53e81992f5"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
-            "version": "==1.1.0"
+            "markers": "python_version >= '3.7'",
+            "version": "==2.1.0"
         },
         "jinja2": {
             "hashes": [
-                "sha256:03e47ad063331dd6a3f04a43eddca8a966a26ba0c5b7207a9a9e4e08f1b29419",
-                "sha256:a6d58433de0ae800347cab1fa3043cebbabe8baa9d29e668f1c768cb87a333c6"
+                "sha256:077ce6014f7b40d03b47d1f1ca4b0fc8328a692bd284016f806ed0eaca390ad8",
+                "sha256:611bb273cd68f3b993fabdc4064fc858c5b47a973cb5aa7999ec1ba405c87cd7"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==2.11.3"
+            "markers": "python_version >= '3.6'",
+            "version": "==3.0.3"
         },
         "kombu": {
             "hashes": [
@@ -544,11 +544,11 @@
         },
         "setuptools": {
             "hashes": [
-                "sha256:2347b2b432c891a863acadca2da9ac101eae6169b1d3dfee2ec605ecd50dbfe5",
-                "sha256:e4f30b9f84e5ab3decf945113119649fec09c1fc3507c6ebffec75646c56e62b"
+                "sha256:22c7348c6d2976a52632c67f7ab0cdf40147db7789f9aed18734643fe9cf3373",
+                "sha256:4ce92f1e1f8f01233ee9952c04f6b81d1e02939d6e1b488428154974a4d0783e"
             ],
-            "markers": "python_version >= '3.7'",
-            "version": "==60.9.3"
+            "markers": "python_version >= '3.6'",
+            "version": "==59.6.0"
         },
         "six": {
             "hashes": [
@@ -633,11 +633,11 @@
         },
         "werkzeug": {
             "hashes": [
-                "sha256:2de2a5db0baeae7b2d2664949077c2ac63fbd16d98da0ff71837f7d1dea3fd43",
-                "sha256:6c80b1e5ad3665290ea39320b91e1be1e0d5f60652b964a3070216de83d2e47c"
+                "sha256:1421ebfc7648a39a5c58c601b154165d05cf47a3cd0ccb70857cbdacf6c8f2b8",
+                "sha256:b863f8ff057c522164b6067c9e28b041161b4be5ba4d0daceeaa50a163822d3c"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
-            "version": "==1.0.1"
+            "markers": "python_version >= '3.6'",
+            "version": "==2.0.3"
         },
         "wrapt": {
             "hashes": [
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 36541bb..064981f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,23 +1,77 @@
--i https://pypi.python.org/simple/
-attrs==20.3.0
-certifi==2020.12.5
-chardet==4.0.0
-codecov==2.1.11
-coverage==5.5
-idna==2.10
+#
+# These requirements were autogenerated by pipenv
+# To regenerate from the project's Pipfile, run:
+#
+#    pipenv lock --requirements --dev
+#
+
+# Note: in pipenv 2020.x, "--dev" changed to emit both default and development
+# requirements. To emit only development requirements, pass "--dev-only".
+
+-i https://pypi.python.org/simple
+alembic==1.7.6
+amqp==5.0.9; python_version >= '3.6'
+attrs==21.4.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+billiard==3.6.4.0
+blinker==1.4
+blurhash==1.1.4
+brotli==1.0.9
+celery==5.2.3
+certifi==2021.10.8
+charset-normalizer==2.0.12; python_version >= '3'
+click-didyoumean==0.3.0; python_full_version >= '3.6.2' and python_full_version < '4.0.0'
+click-plugins==1.1.1
+click-repl==0.2.0
+click==8.0.4; python_version >= '3.6'
+cloudpickle==2.0.0; python_version >= '3.6'
+codecov==2.1.12
+coverage==6.3.2
+csscompressor==0.9.5
+decorator==5.1.1; python_version >= '3.5'
+deprecated==1.2.13; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+doit==0.34.2
+flask-migrate==3.1.0
+flask-sqlalchemy==2.5.1
+flask==2.0.3
+greenlet==1.1.2; python_version >= '3' and platform_machine == 'aarch64' or (platform_machine == 'ppc64le' or (platform_machine == 'x86_64' or (platform_machine == 'amd64' or (platform_machine == 'AMD64' or (platform_machine == 'win32' or platform_machine == 'WIN32')))))
+gunicorn==20.1.0
+honcho==1.1.0
+idna==3.3; python_version >= '3'
 iniconfig==1.1.1
-mirakuru==2.3.0
-packaging==20.9
-pluggy==0.13.1
-port-for==0.4
-psutil==5.8.0 ; sys_platform != 'cygwin'
-py==1.10.0
-pyparsing==2.4.7
-pytest-cov==2.11.1
-pytest-redis==2.0.0
-pytest==6.2.2
-redis==3.5.3
-requests==2.25.1
-toml==0.10.2
-urllib3==1.26.4
-versioneer==0.19
+itsdangerous==2.1.0; python_version >= '3.7'
+jinja2==3.0.3; python_version >= '3.6'
+kombu==5.2.3; python_version >= '3.7'
+mako==1.1.6; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+markupsafe==2.1.0; python_version >= '3.7'
+mastodon.py==1.5.1
+mirakuru==2.4.2; python_version >= '3.7'
+packaging==21.3; python_version >= '3.6'
+pillow==9.0.1
+pluggy==1.0.0; python_version >= '3.6'
+port-for==0.6.2; python_version >= '3.7'
+prompt-toolkit==3.0.28; python_full_version >= '3.6.2'
+psutil==5.9.0; sys_platform != 'cygwin'
+psycopg2==2.9.3
+py==1.11.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+pyinotify==0.9.6; sys_platform == 'linux'
+pyparsing==3.0.7; python_version >= '3.6'
+pytest-cov==3.0.0
+pytest-redis==2.4.0
+pytest==7.0.1
+python-dateutil==2.8.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+python-magic==0.4.25; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+pytz==2021.3
+raven==6.10.0
+redis==4.1.4
+requests==2.27.1
+setuptools==59.6.0; python_version >= '3.6'
+six==1.16.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+sqlalchemy==1.4.31
+tomli==2.0.1; python_version >= '3.7'
+twitter==1.19.3
+urllib3==1.26.8; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_full_version < '4.0.0'
+versioneer==0.21
+vine==5.0.0; python_version >= '3.6'
+wcwidth==0.2.5
+werkzeug==2.0.3; python_version >= '3.6'
+wrapt==1.13.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
diff --git a/requirements.txt b/requirements.txt
index 6c72d36..8f53b46 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,43 +1,60 @@
--i https://pypi.python.org/simple/
-alembic==1.5.8
-amqp==2.6.1
-billiard==3.6.3.0
+#
+# These requirements were autogenerated by pipenv
+# To regenerate from the project's Pipfile, run:
+#
+#    pipenv lock --requirements
+#
+
+-i https://pypi.python.org/simple
+alembic==1.7.6
+amqp==5.0.9; python_version >= '3.6'
+billiard==3.6.4.0
 blinker==1.4
 blurhash==1.1.4
 brotli==1.0.9
-celery==4.4.2
-certifi==2020.12.5
-chardet==4.0.0
-click==7.1.2
-cloudpickle==1.6.0
+celery==5.2.3
+certifi==2021.10.8
+charset-normalizer==2.0.12; python_version >= '3'
+click-didyoumean==0.3.0; python_full_version >= '3.6.2' and python_full_version < '4.0.0'
+click-plugins==1.1.1
+click-repl==0.2.0
+click==8.0.4; python_version >= '3.6'
+cloudpickle==2.0.0; python_version >= '3.6'
 csscompressor==0.9.5
-decorator==4.4.2
-doit==0.33.1
-flask-migrate==2.5.3
-flask-sqlalchemy==2.4.4
-flask==1.1.2
-gunicorn==20.0.4
-honcho==1.0.1
-idna==2.10
-itsdangerous==1.1.0
-jinja2==2.11.3
-kombu==4.6.11
-mako==1.1.4
-markupsafe==1.1.1
+decorator==5.1.1; python_version >= '3.5'
+deprecated==1.2.13; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+doit==0.34.2
+flask-migrate==3.1.0
+flask-sqlalchemy==2.5.1
+flask==2.0.3
+greenlet==1.1.2; python_version >= '3' and platform_machine == 'aarch64' or (platform_machine == 'ppc64le' or (platform_machine == 'x86_64' or (platform_machine == 'amd64' or (platform_machine == 'AMD64' or (platform_machine == 'win32' or platform_machine == 'WIN32')))))
+gunicorn==20.1.0
+honcho==1.1.0
+idna==3.3; python_version >= '3'
+itsdangerous==2.1.0; python_version >= '3.7'
+jinja2==3.0.3; python_version >= '3.6'
+kombu==5.2.3; python_version >= '3.7'
+mako==1.1.6; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+markupsafe==2.1.0; python_version >= '3.7'
 mastodon.py==1.5.1
-pillow==8.1.2
-psycopg2==2.8.6
-pyinotify==0.9.6 ; sys_platform == 'linux'
-python-dateutil==2.8.1
-python-editor==1.0.4
-python-magic==0.4.22
-pytz==2021.1
+packaging==21.3; python_version >= '3.6'
+pillow==9.0.1
+prompt-toolkit==3.0.28; python_full_version >= '3.6.2'
+psycopg2==2.9.3
+pyinotify==0.9.6; sys_platform == 'linux'
+pyparsing==3.0.7; python_version >= '3.6'
+python-dateutil==2.8.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+python-magic==0.4.25; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
+pytz==2021.3
 raven==6.10.0
-redis==3.5.3
-requests==2.25.1
-six==1.15.0
-sqlalchemy==1.3.23
-twitter==1.18.0
-urllib3==1.26.4
-vine==1.3.0
-werkzeug==1.0.1
+redis==4.1.4
+requests==2.27.1
+setuptools==59.6.0; python_version >= '3.6'
+six==1.16.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
+sqlalchemy==1.4.31
+twitter==1.19.3
+urllib3==1.26.8; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_full_version < '4.0.0'
+vine==5.0.0; python_version >= '3.6'
+wcwidth==0.2.5
+werkzeug==2.0.3; python_version >= '3.6'
+wrapt==1.13.3; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
diff --git a/tasks.py b/tasks.py
index ba774d4..b4be09c 100644
--- a/tasks.py
+++ b/tasks.py
@@ -23,6 +23,7 @@ app = Celery(
     'tasks',
     broker=flaskapp.config['CELERY_BROKER'],
     task_serializer='pickle',
+    accept_content={'pickle',},
     task_soft_time_limit=600,
     task_time_limit=1200,
 )