diff --git a/homeassistant/components/habitica/config_flow.py b/homeassistant/components/habitica/config_flow.py
index 0c7ce1fdfdb..7a7f369cb09 100644
--- a/homeassistant/components/habitica/config_flow.py
+++ b/homeassistant/components/habitica/config_flow.py
@@ -40,6 +40,7 @@ from .const import (
     DOMAIN,
     FORGOT_PASSWORD_URL,
     HABITICANS_URL,
+    SECTION_DANGER_ZONE,
     SECTION_REAUTH_API_KEY,
     SECTION_REAUTH_LOGIN,
     SIGN_UP_URL,
@@ -105,6 +106,21 @@ STEP_REAUTH_DATA_SCHEMA = vol.Schema(
     }
 )
 
+STEP_RECONF_DATA_SCHEMA = vol.Schema(
+    {
+        vol.Required(CONF_API_KEY): str,
+        vol.Required(SECTION_DANGER_ZONE): data_entry_flow.section(
+            vol.Schema(
+                {
+                    vol.Required(CONF_URL): str,
+                    vol.Required(CONF_VERIFY_SSL): bool,
+                },
+            ),
+            {"collapsed": True},
+        ),
+    }
+)
+
 _LOGGER = logging.getLogger(__name__)
 
 
@@ -260,6 +276,50 @@ class HabiticaConfigFlow(ConfigFlow, domain=DOMAIN):
             errors=errors,
         )
 
+    async def async_step_reconfigure(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Handle reconfiguration of the integration."""
+        errors: dict[str, str] = {}
+        reconf_entry = self._get_reconfigure_entry()
+        suggested_values = {
+            CONF_API_KEY: reconf_entry.data[CONF_API_KEY],
+            SECTION_DANGER_ZONE: {
+                CONF_URL: reconf_entry.data[CONF_URL],
+                CONF_VERIFY_SSL: reconf_entry.data.get(CONF_VERIFY_SSL, True),
+            },
+        }
+
+        if user_input:
+            errors, user = await self.validate_api_key(
+                {
+                    **reconf_entry.data,
+                    **user_input,
+                    **user_input[SECTION_DANGER_ZONE],
+                }
+            )
+            if not errors and user is not None:
+                return self.async_update_reload_and_abort(
+                    reconf_entry,
+                    data_updates={
+                        CONF_API_KEY: user_input[CONF_API_KEY],
+                        **user_input[SECTION_DANGER_ZONE],
+                    },
+                )
+
+        return self.async_show_form(
+            step_id="reconfigure",
+            data_schema=self.add_suggested_values_to_schema(
+                data_schema=STEP_RECONF_DATA_SCHEMA,
+                suggested_values=user_input or suggested_values,
+            ),
+            errors=errors,
+            description_placeholders={
+                "site_data": SITE_DATA_URL,
+                "habiticans": HABITICANS_URL,
+            },
+        )
+
     async def validate_login(
         self, user_input: Mapping[str, Any]
     ) -> tuple[dict[str, str], LoginData | None, UserData | None]:
diff --git a/homeassistant/components/habitica/const.py b/homeassistant/components/habitica/const.py
index 47191e92775..5eb616142e5 100644
--- a/homeassistant/components/habitica/const.py
+++ b/homeassistant/components/habitica/const.py
@@ -56,3 +56,4 @@ X_CLIENT = f"{DEVELOPER_ID} - {APPLICATION_NAME} {__version__}"
 
 SECTION_REAUTH_LOGIN = "reauth_login"
 SECTION_REAUTH_API_KEY = "reauth_api_key"
+SECTION_DANGER_ZONE = "danger_zone"
diff --git a/homeassistant/components/habitica/quality_scale.yaml b/homeassistant/components/habitica/quality_scale.yaml
index c4ad2c76110..9eadba496f2 100644
--- a/homeassistant/components/habitica/quality_scale.yaml
+++ b/homeassistant/components/habitica/quality_scale.yaml
@@ -66,7 +66,7 @@ rules:
   entity-translations: done
   exception-translations: done
   icon-translations: done
-  reconfiguration-flow: todo
+  reconfiguration-flow: done
   repair-issues:
     status: done
     comment: Used to inform of deprecated entities and actions.
diff --git a/homeassistant/components/habitica/strings.json b/homeassistant/components/habitica/strings.json
index 44487e7cb37..4d353cec40e 100644
--- a/homeassistant/components/habitica/strings.json
+++ b/homeassistant/components/habitica/strings.json
@@ -13,7 +13,8 @@
     "abort": {
       "already_configured": "[%key:common::config_flow::abort::already_configured_account%]",
       "unique_id_mismatch": "Hmm, those login details are correct, but they're not for this adventurer. Got another account to try?",
-      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]"
+      "reauth_successful": "[%key:common::config_flow::abort::reauth_successful%]",
+      "reconfigure_successful": "[%key:common::config_flow::abort::reconfigure_successful%]"
     },
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
@@ -85,6 +86,30 @@
             }
           }
         }
+      },
+      "reconfigure": {
+        "title": "Update Habitica configuration",
+        "description": "![Habiticans]({habiticans})\n\nEnter your new API token below. You can find it in Habitica under [**Settings -> Site Data**]({site_data})",
+        "data": {
+          "api_key": "[%key:component::habitica::config::step::advanced::data::api_key%]"
+        },
+        "data_description": {
+          "api_key": "[%key:component::habitica::config::step::advanced::data_description::api_key%]"
+        },
+        "sections": {
+          "danger_zone": {
+            "name": "Critical configuration options",
+            "description": "These settings impact core functionality. Modifications are unnecessary if connected to the official Habitica instance and may disrupt the integration. Proceed with caution.",
+            "data": {
+              "url": "[%key:common::config_flow::data::url%]",
+              "verify_ssl": "[%key:common::config_flow::data::verify_ssl%]"
+            },
+            "data_description": {
+              "url": "URL of the Habitica instance",
+              "verify_ssl": "[%key:component::habitica::config::step::advanced::data_description::verify_ssl%]"
+            }
+          }
+        }
       }
     }
   },
diff --git a/tests/components/habitica/test_config_flow.py b/tests/components/habitica/test_config_flow.py
index bacd1ee3ac9..07678b031bc 100644
--- a/tests/components/habitica/test_config_flow.py
+++ b/tests/components/habitica/test_config_flow.py
@@ -9,6 +9,7 @@ from homeassistant.components.habitica.const import (
     CONF_API_USER,
     DEFAULT_URL,
     DOMAIN,
+    SECTION_DANGER_ZONE,
     SECTION_REAUTH_API_KEY,
     SECTION_REAUTH_LOGIN,
 )
@@ -54,6 +55,13 @@ USER_INPUT_REAUTH_API_KEY = {
     SECTION_REAUTH_LOGIN: {},
     SECTION_REAUTH_API_KEY: {CONF_API_KEY: "cd0e5985-17de-4b4f-849e-5d506c5e4382"},
 }
+USER_INPUT_RECONFIGURE = {
+    CONF_API_KEY: "cd0e5985-17de-4b4f-849e-5d506c5e4382",
+    SECTION_DANGER_ZONE: {
+        CONF_URL: DEFAULT_URL,
+        CONF_VERIFY_SSL: True,
+    },
+}
 
 
 @pytest.mark.usefixtures("habitica")
@@ -449,3 +457,79 @@ async def test_flow_reauth_unique_id_mismatch(hass: HomeAssistant) -> None:
     assert result["reason"] == "unique_id_mismatch"
 
     assert len(hass.config_entries.async_entries()) == 1
+
+
+@pytest.mark.usefixtures("habitica")
+async def test_flow_reconfigure(
+    hass: HomeAssistant, config_entry: MockConfigEntry
+) -> None:
+    """Test reconfigure flow."""
+    config_entry.add_to_hass(hass)
+    result = await config_entry.start_reconfigure_flow(hass)
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "reconfigure"
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        USER_INPUT_RECONFIGURE,
+    )
+
+    await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "reconfigure_successful"
+    assert config_entry.data[CONF_API_KEY] == "cd0e5985-17de-4b4f-849e-5d506c5e4382"
+    assert config_entry.data[CONF_URL] == DEFAULT_URL
+    assert config_entry.data[CONF_VERIFY_SSL] is True
+
+    assert len(hass.config_entries.async_entries()) == 1
+
+
+@pytest.mark.parametrize(
+    ("raise_error", "text_error"),
+    [
+        (ERROR_NOT_AUTHORIZED, "invalid_auth"),
+        (ERROR_BAD_REQUEST, "cannot_connect"),
+        (KeyError, "unknown"),
+    ],
+)
+async def test_flow_reconfigure_errors(
+    hass: HomeAssistant,
+    habitica: AsyncMock,
+    config_entry: MockConfigEntry,
+    raise_error: Exception,
+    text_error: str,
+) -> None:
+    """Test reconfigure flow errors."""
+    config_entry.add_to_hass(hass)
+    result = await config_entry.start_reconfigure_flow(hass)
+    assert result["type"] is FlowResultType.FORM
+    assert result["step_id"] == "reconfigure"
+
+    habitica.get_user.side_effect = raise_error
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        USER_INPUT_RECONFIGURE,
+    )
+
+    await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.FORM
+    assert result["errors"] == {"base": text_error}
+
+    habitica.get_user.side_effect = None
+
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        user_input=USER_INPUT_RECONFIGURE,
+    )
+
+    await hass.async_block_till_done()
+
+    assert result["type"] is FlowResultType.ABORT
+    assert result["reason"] == "reconfigure_successful"
+    assert config_entry.data[CONF_API_KEY] == "cd0e5985-17de-4b4f-849e-5d506c5e4382"
+    assert config_entry.data[CONF_URL] == DEFAULT_URL
+    assert config_entry.data[CONF_VERIFY_SSL] is True
+
+    assert len(hass.config_entries.async_entries()) == 1