diff --git a/burr/integrations/streamlit.py b/burr/integrations/streamlit.py
index 71b63bce0..bb9fd9e9e 100644
--- a/burr/integrations/streamlit.py
+++ b/burr/integrations/streamlit.py
@@ -95,15 +95,16 @@ def load_state_from_log_file(jsonl_log_file: str, app: Application) -> AppState:
     :return: AppState
     """
     out = []
-    for i, line in enumerate(open(jsonl_log_file)):
-        json_line = json.loads(line)
-        record = Record(
-            state=json_line["state"],
-            action=json_line["action"],
-            result=json_line["result"]
-            # TODO -- add start time, end time
-        )
-        out.append(record)
+    with open(jsonl_log_file, encoding="utf-8") as log_file:
+        for line in log_file:
+            json_line = json.loads(line)
+            record = Record(
+                state=json_line["state"],
+                action=json_line["action"],
+                result=json_line["result"]
+                # TODO -- add start time, end time
+            )
+            out.append(record)
     return AppState(display_index=len(out) - 1, history=out, app=app)
 
 
diff --git a/tests/integrations/test_streamlit.py b/tests/integrations/test_streamlit.py
new file mode 100644
index 000000000..6f1a3b8a6
--- /dev/null
+++ b/tests/integrations/test_streamlit.py
@@ -0,0 +1,80 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+import builtins
+import importlib.util
+import json
+import sys
+import types
+from pathlib import Path
+
+
+def test_load_state_from_log_file_reads_utf8(monkeypatch, tmp_path):
+    monkeypatch.setitem(
+        sys.modules,
+        "burr.integrations.hamilton",
+        types.SimpleNamespace(Hamilton=object, StateSource=object),
+    )
+    monkeypatch.setitem(sys.modules, "graphviz", types.SimpleNamespace(Digraph=object))
+    monkeypatch.setitem(sys.modules, "streamlit", types.SimpleNamespace(session_state={}))
+    colors = types.ModuleType("matplotlib.colors")
+    matplotlib = types.ModuleType("matplotlib")
+    matplotlib.colors = colors
+    monkeypatch.setitem(sys.modules, "matplotlib", matplotlib)
+    monkeypatch.setitem(sys.modules, "matplotlib.colors", colors)
+    # Use a temporary module name so stubbed imports cannot leak into later tests.
+    name = "_burr_streamlit_under_test"
+    spec = importlib.util.spec_from_file_location(
+        name, Path(__file__).resolve().parents[2] / "burr/integrations/streamlit.py"
+    )
+    streamlit = importlib.util.module_from_spec(spec)
+    monkeypatch.setitem(sys.modules, name, streamlit)
+    spec.loader.exec_module(streamlit)
+
+    log_file = tmp_path / "state.jsonl"
+    log_file.write_text(
+        json.dumps(
+            {
+                "state": {"message": "café"},
+                "action": "say",
+                "result": {"ok": True},
+            },
+            ensure_ascii=False,
+        )
+        + "\n",
+        encoding="utf-8",
+    )
+
+    real_open = builtins.open
+    opened = []
+
+    def guarded_open(*args, **kwargs):
+        assert kwargs.get("encoding") == "utf-8"
+        handle = real_open(*args, **kwargs)
+        opened.append(handle)
+        return handle
+
+    monkeypatch.setattr(builtins, "open", guarded_open)
+
+    app = object()
+    state = streamlit.load_state_from_log_file(str(log_file), app)
+
+    assert state.app is app
+    assert state.history[0].state == {"message": "café"}
+    assert state.history[0].action == "say"
+    assert state.history[0].result == {"ok": True}
+    assert opened and all(handle.closed for handle in opened)