diff --git a/.gitignore b/.gitignore
index ce377d1..068bc72 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,3 +71,4 @@ docs/yarn-debug.log*
 docs/yarn-error.log*
 docs/versioned_docs/static/
 
+.tox/
diff --git a/changelog.md b/changelog.md
index cd43eb4..5c9eb5f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,7 +1,7 @@
 # EAS Python client
 ## [0.27.0] - UNRELEASED
 ### Breaking Changes
-* None.
+* Bumping `urllib3` to `v2.5.0`, and pulling in `zepben.auth` via the SDK.
 
 ### New Features
 * None.
diff --git a/pyproject.toml b/pyproject.toml
index ad4c380..a2fd639 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,8 +26,8 @@ authors = [
 dependencies = [
     "geojson==2.5.0",
     "requests<3.0.0,>=2.26.0",
-    "urllib3==1.26.6",
-    "zepben.auth==0.12.1",
+    "urllib3==2.5.0",
+    "zepben.ewb==1.1.0b14",
     "aiohttp[speedups]==3.9.0",
 ]
 classifiers = [
diff --git a/src/zepben/eas/client/eas_client.py b/src/zepben/eas/client/eas_client.py
index c2502d1..1cb5034 100644
--- a/src/zepben/eas/client/eas_client.py
+++ b/src/zepben/eas/client/eas_client.py
@@ -16,7 +16,7 @@
 import aiohttp
 from aiohttp import ClientSession
 from urllib3.exceptions import InsecureRequestWarning
-from zepben.auth import AuthMethod, ZepbenTokenFetcher, create_token_fetcher, create_token_fetcher_managed_identity
+from zepben.ewb.auth import AuthMethod, ZepbenTokenFetcher, create_token_fetcher, create_token_fetcher_managed_identity
 
 from zepben.eas.client.feeder_load_analysis_input import FeederLoadAnalysisInput
 from zepben.eas.client.ingestor import IngestorConfigInput, IngestorRunsFilterInput, IngestorRunsSortCriteriaInput
diff --git a/test/test_eas_client.py b/test/test_eas_client.py
index 4d1e365..83bc6f8 100644
--- a/test/test_eas_client.py
+++ b/test/test_eas_client.py
@@ -15,7 +15,7 @@
 import trustme
 from pytest_httpserver import HTTPServer
 from werkzeug import Response
-from zepben.auth import ZepbenTokenFetcher
+from zepben.ewb.auth import ZepbenTokenFetcher
 
 from zepben.eas import EasClient, Study, SolveConfig
 from zepben.eas import FeederConfig, ForecastConfig, FixedTimeLoadOverride
@@ -99,7 +99,7 @@ def test_get_request_headers_adds_access_token_in_auth_header():
     assert headers["authorization"] == f"Bearer {mock_access_token}"
 
 
-@mock.patch("zepben.auth.client.zepben_token_fetcher.ZepbenTokenFetcher.fetch_token", return_value="test_token3")
+@mock.patch("zepben.ewb.auth.client.zepben_token_fetcher.ZepbenTokenFetcher.fetch_token", return_value="test_token3")
 def test_get_request_headers_adds_token_from_token_fetcher_in_auth_header(_):
     eas_client = EasClient(
         mock_host,
@@ -113,7 +113,7 @@ def test_get_request_headers_adds_token_from_token_fetcher_in_auth_header(_):
     assert headers["authorization"] == "test_token3"
 
 
-@mock.patch("zepben.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
+@mock.patch("zepben.ewb.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
     {"authType": "AUTH0", "audience": mock_audience, "issuer": "test_issuer"}, 200))
 def test_create_eas_client_with_password_success(_):
     eas_client = EasClient(
@@ -136,7 +136,7 @@ def test_create_eas_client_with_password_success(_):
     assert eas_client._verify_certificate == mock_verify_certificate
 
 
-@mock.patch("zepben.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
+@mock.patch("zepben.ewb.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
     {"authType": "AUTH0", "audience": mock_audience, "issuer": "test_issuer"}, 200))
 def test_create_eas_client_with_client_secret_success(_):
     eas_client = EasClient(
@@ -521,7 +521,7 @@ def test_raises_error_if_token_fetcher_and_creds_configured(httpserver: HTTPServ
         )
 
 
-@mock.patch("zepben.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
+@mock.patch("zepben.ewb.auth.client.zepben_token_fetcher.requests.get", side_effect=lambda *args, **kwargs: MockResponse(
     {"authType": "AUTH0", "audience": mock_audience, "issuer": "test_issuer"}, 200))
 def test_allows_secret_and_creds_configured(httpserver: HTTPServer):
     eas_client = EasClient(