diff --git a/homeassistant/components/p1_monitor/manifest.json b/homeassistant/components/p1_monitor/manifest.json
index 3ed5589e577..0dfe1f3a46c 100644
--- a/homeassistant/components/p1_monitor/manifest.json
+++ b/homeassistant/components/p1_monitor/manifest.json
@@ -7,5 +7,5 @@
   "iot_class": "local_polling",
   "loggers": ["p1monitor"],
   "quality_scale": "platinum",
-  "requirements": ["p1monitor==2.1.1"]
+  "requirements": ["p1monitor==3.0.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index 3b67ff705c4..b090f5ff6b0 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -1426,7 +1426,7 @@ orvibo==1.1.1
 ovoenergy==1.2.0
 
 # homeassistant.components.p1_monitor
-p1monitor==2.1.1
+p1monitor==3.0.0
 
 # homeassistant.components.mqtt
 paho-mqtt==1.6.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index f47a416cb23..e40aed8d023 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1096,7 +1096,7 @@ oralb-ble==0.17.6
 ovoenergy==1.2.0
 
 # homeassistant.components.p1_monitor
-p1monitor==2.1.1
+p1monitor==3.0.0
 
 # homeassistant.components.mqtt
 paho-mqtt==1.6.1
diff --git a/tests/components/p1_monitor/test_diagnostics.py b/tests/components/p1_monitor/test_diagnostics.py
index 47f43dd3401..55d4ccc5e67 100644
--- a/tests/components/p1_monitor/test_diagnostics.py
+++ b/tests/components/p1_monitor/test_diagnostics.py
@@ -35,12 +35,12 @@ async def test_diagnostics(
                 "energy_production_low": 1432.279,
             },
             "phases": {
-                "voltage_phase_l1": "233.6",
-                "voltage_phase_l2": "0.0",
-                "voltage_phase_l3": "233.0",
-                "current_phase_l1": "1.6",
-                "current_phase_l2": "4.44",
-                "current_phase_l3": "3.51",
+                "voltage_phase_l1": 233.6,
+                "voltage_phase_l2": 0.0,
+                "voltage_phase_l3": 233.0,
+                "current_phase_l1": 1.6,
+                "current_phase_l2": 4.44,
+                "current_phase_l3": 3.51,
                 "power_consumed_phase_l1": 315,
                 "power_consumed_phase_l2": 0,
                 "power_consumed_phase_l3": 624,
@@ -49,11 +49,11 @@ async def test_diagnostics(
                 "power_produced_phase_l3": 0,
             },
             "settings": {
-                "gas_consumption_price": "0.64",
-                "energy_consumption_price_high": "0.20522",
-                "energy_consumption_price_low": "0.20522",
-                "energy_production_price_high": "0.20522",
-                "energy_production_price_low": "0.20522",
+                "gas_consumption_price": 0.64,
+                "energy_consumption_price_high": 0.20522,
+                "energy_consumption_price_low": 0.20522,
+                "energy_production_price_high": 0.20522,
+                "energy_production_price_low": 0.20522,
             },
             "watermeter": {
                 "consumption_day": 112.0,