diff --git a/app/charts/synchronous.py b/app/charts/synchronous.py
index 3964102..c5ebb2e 100644
--- a/app/charts/synchronous.py
+++ b/app/charts/synchronous.py
@@ -15,7 +15,6 @@ from .models import (
 )
 from requests import Session
 from requests.exceptions import ConnectionError, Timeout, TooManyRedirects
-import pygsheets
 import pytz
 from django.conf import settings
 
@@ -394,23 +393,22 @@ def update_dominance(data):
         )
         dominance.save()
 
-        
-
-        gc = pygsheets.authorize(service_file="service_account_credentials.json")
-        sh = gc.open("zcash_bitcoin")
-        wks = sh.worksheet_by_title("Sheet7")
-
-        values_mat = wks.get_values(start=(3, 1), end=(9999, 2), returnas="matrix")
+        df = pd.read_excel(DATA_FILE, engine="odf", sheet_name="Sheet7")
+        start_row, end_row = 2, 9999
+        start_col, end_col = 0, 2
+        values_mat = df.iloc[start_row:end_row, start_col:end_col].to_numpy()
 
         k = len(values_mat)
         date_aux = datetime.datetime.strptime(values_mat[k - 1][0], "%Y-%m-%d")
         date_aux2 = datetime.datetime.strftime(date.today(), "%Y-%m-%d")
         date_aux2 = datetime.datetime.strptime(date_aux2, "%Y-%m-%d")
         if date_aux < date_aux2:
-            cell = "B" + str(k + 3)
-            wks.update_value(cell, dominance.dominance)
-            cell = "A" + str(k + 3)
-            wks.update_value(cell, dominance.date)
+            values_mat[k][1] = dominance.dominance
+            values_mat[k][0] = dominance.date
+            
+            df.iloc[start_row:end_row, start_col:end_col] = values_mat
+            df.to_excel(DATA_FILE, sheet_name="Sheet7", index=False)
+
             print("spreadsheet updated")
         else:
             print("spreadsheet already with the latest data")
@@ -432,21 +430,22 @@ def update_rank(data=None):
         rank.rank = int(data["data"]["XMR"]["cmc_rank"])
         rank.save()
 
-        gc = pygsheets.authorize(service_file="service_account_credentials.json")
-        sh = gc.open("zcash_bitcoin")
-        wks = sh.worksheet_by_title("Sheet8")
-
-        values_mat = wks.get_values(start=(3, 1), end=(9999, 2), returnas="matrix")
+        df = pd.read_excel(DATA_FILE, engine="odf", sheet_name="Sheet8")
+        start_row, end_row = 2, 9999
+        start_col, end_col = 0, 2
+        values_mat = df.iloc[start_row:end_row, start_col:end_col].to_numpy()
 
         k = len(values_mat)
         date_aux = datetime.datetime.strptime(values_mat[k - 1][0], "%Y-%m-%d")
         date_aux2 = datetime.datetime.strftime(date.today(), "%Y-%m-%d")
         date_aux2 = datetime.datetime.strptime(date_aux2, "%Y-%m-%d")
         if date_aux < date_aux2:
-            cell = "B" + str(k + 3)
-            wks.update_value(cell, rank.rank)
-            cell = "A" + str(k + 3)
-            wks.update_value(cell, rank.date)
+            values_mat[k][1] = rank.rank
+            values_mat[k][0] = rank.date
+            
+            df.iloc[start_row:end_row, start_col:end_col] = values_mat
+            df.to_excel(DATA_FILE, sheet_name="Sheet8", index=False)
+
             print("spreadsheet updated")
         else:
             print("spreadsheet already with the latest data")
diff --git a/requirements.txt b/requirements.txt
index c5afd81..50ba413 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,10 +15,6 @@ django-bootstrap4==24.4
 django-csp==3.8
 feedparser==6.0.11
 frozenlist==1.5.0
-google-api-core<3.0.0
-google-api-python-client<3.0.0
-google-auth<3.0.0
-googleapis-common-protos<2.0.0
 gunicorn # TODO: Should this really be a project dependency?
 httplib2==0.20.4
 multidict==6.1.0
@@ -31,12 +27,10 @@ psaw==0.1.0 # TODO: Unmaintained, recommends switch to https://github.com/mattpo
 psycopg2-binary
 pyasn1==0.6.1
 pyasn1-modules==0.4.1
-pygsheets==2.0.6
 pyparsing==3.2.0
 python-dateutil==2.9.0.post0
 pytz
 requests<3.0.0
-requests-oauthlib==1.3.1 # TODO: 2.0.0
 rsa==4.9
 sgmllib3k==1.0.0
 six==1.16.0