diff --git a/requirements-dev.txt b/requirements-dev.txt
index ac0e7e4..25bf00f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,35 +1,44 @@
-blinker==1.6.2
-click==8.1.3
-dash==2.9.3
+ansi2html==1.8.0
+blinker==1.6.3
+certifi==2023.7.22
+charset-normalizer==3.3.1
+click==8.1.7
+dash==2.14.1
 dash-core-components==2.0.0
 dash-html-components==2.0.0
 dash-table==5.0.0
 et-xmlfile==1.1.0
-exceptiongroup==1.1.1
-flake8==6.0.0
-Flask==2.3.2
+flake8==6.1.0
+Flask==3.0.0
+idna==3.4
+importlib-metadata==6.8.0
 iniconfig==2.0.0
 itsdangerous==2.1.2
 Jinja2==3.1.2
-MarkupSafe==2.1.2
+MarkupSafe==2.1.3
 mccabe==0.7.0
-numpy==1.24.3
+nest-asyncio==1.5.8
+numpy==1.26.1
 openpyxl==3.1.2
-packaging==23.1
-pandas==2.0.1
+packaging==23.2
+pandas==2.1.2
 patsy==0.5.3
-plotly==5.14.1
-pluggy==1.0.0
-pycodestyle==2.10.0
-pyflakes==3.0.1
-pytest==7.3.1
+plotly==5.18.0
+pluggy==1.3.0
+pycodestyle==2.11.1
+pyflakes==3.1.0
+pytest==7.4.3
 python-dateutil==2.8.2
-pytz==2023.3
-scipy==1.10.1
+pytz==2023.3.post1
+requests==2.31.0
+retrying==1.3.4
+scipy==1.11.3
 six==1.16.0
-statsmodels==0.13.5
-tenacity==8.2.2
-tomli==2.0.1
+statsmodels==0.14.0
+tenacity==8.2.3
+typing_extensions==4.8.0
 tzdata==2023.3
+urllib3==2.0.7
 waitress==2.1.2
-Werkzeug==2.3.3
+Werkzeug==3.0.1
+zipp==3.17.0
diff --git a/requirements.txt b/requirements.txt
index 8369b1f..5f2b586 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,26 +1,37 @@
-blinker==1.6.2
-click==8.1.3
-dash==2.9.3
+ansi2html==1.8.0
+blinker==1.6.3
+certifi==2023.7.22
+charset-normalizer==3.3.1
+click==8.1.7
+dash==2.14.1
 dash-core-components==2.0.0
 dash-html-components==2.0.0
 dash-table==5.0.0
 et-xmlfile==1.1.0
-Flask==2.3.2
+Flask==3.0.0
+idna==3.4
+importlib-metadata==6.8.0
 itsdangerous==2.1.2
 Jinja2==3.1.2
-MarkupSafe==2.1.2
-numpy==1.24.3
+MarkupSafe==2.1.3
+nest-asyncio==1.5.8
+numpy==1.26.1
 openpyxl==3.1.2
-packaging==23.1
-pandas==2.0.1
+packaging==23.2
+pandas==2.1.2
 patsy==0.5.3
-plotly==5.14.1
+plotly==5.18.0
 python-dateutil==2.8.2
-pytz==2023.3
-scipy==1.10.1
+pytz==2023.3.post1
+requests==2.31.0
+retrying==1.3.4
+scipy==1.11.3
 six==1.16.0
-statsmodels==0.13.5
-tenacity==8.2.2
+statsmodels==0.14.0
+tenacity==8.2.3
+typing_extensions==4.8.0
 tzdata==2023.3
+urllib3==2.0.7
 waitress==2.1.2
-Werkzeug==2.3.3
+Werkzeug==3.0.1
+zipp==3.17.0
diff --git a/ts_app/components/modelling.py b/ts_app/components/modelling.py
index 1800b56..56a2291 100644
--- a/ts_app/components/modelling.py
+++ b/ts_app/components/modelling.py
@@ -1,3 +1,4 @@
+from io import StringIO
 from typing import Optional, Tuple
 
 import pandas as pd
@@ -174,10 +175,14 @@ def model_and_predict(
 
     if input_source == "/upload" and upload is not None:
         filename = upload["filename"]
-        data = pd.read_json(upload["data"], orient="index", typ="series")
+        data = pd.read_json(
+            StringIO(upload["data"]), orient="index", typ="series"
+        )
     elif input_source == "/sample" and sample is not None:
         filename = sample["filename"]
-        data = pd.read_json(sample["data"], orient="index", typ="series")
+        data = pd.read_json(
+            StringIO(sample["data"]), orient="index", typ="series"
+        )
     else:
         filename = "a random sample"
         data = create_arma_sample()