diff --git a/changelog/fixed/typing-tapir.md b/changelog/fixed/typing-tapir.md
new file mode 100644
index 000000000..f9979ad37
--- /dev/null
+++ b/changelog/fixed/typing-tapir.md
@@ -0,0 +1 @@
+Fix OpenTelemetry logger attribute typing and logger-provider test collection with OpenTelemetry 1.45 and newer by accepting string-keyed mappings without restricting attribute value types.
diff --git a/temporalio/contrib/opentelemetry/_logger_provider.py b/temporalio/contrib/opentelemetry/_logger_provider.py
index 31cd0d1e4..141004312 100644
--- a/temporalio/contrib/opentelemetry/_logger_provider.py
+++ b/temporalio/contrib/opentelemetry/_logger_provider.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Any
+from collections.abc import Mapping
+from typing import Any
 
 # The OpenTelemetry Logs API specification is stable, but opentelemetry-python
 # exposes the logs bridge API only under the private opentelemetry._logs
@@ -13,11 +14,6 @@
 
 from temporalio import workflow
 
-if TYPE_CHECKING:
-    # _ExtendedAttributes is the annotation OpenTelemetry's own public
-    # get_logger signature uses; there is no public alias.
-    from opentelemetry.util.types import _ExtendedAttributes
-
 
 def _skip_emitting() -> bool:
     # in_workflow() must be evaluated first: is_replaying_history_events()
@@ -123,7 +119,7 @@ def get_logger(
         name: str,
         version: str | None = None,
         schema_url: str | None = None,
-        attributes: _ExtendedAttributes | None = None,
+        attributes: Mapping[str, Any] | None = None,
     ) -> Logger:
         """Get a replay-safe logger from the underlying provider.
 
@@ -132,6 +128,8 @@ def get_logger(
             version: The version string of the instrumenting library.
             schema_url: The schema URL for the logger.
             attributes: Instrumentation scope attributes for the logger.
+                Values are typed permissively to support different OpenTelemetry
+                attribute types across supported versions.
 
         Returns:
             A replay-safe logger instance.
diff --git a/tests/contrib/opentelemetry/test_logger_provider.py b/tests/contrib/opentelemetry/test_logger_provider.py
index e3d1ac09d..400802a17 100644
--- a/tests/contrib/opentelemetry/test_logger_provider.py
+++ b/tests/contrib/opentelemetry/test_logger_provider.py
@@ -1,10 +1,11 @@
 """Unit tests for ReplaySafeLoggerProvider."""
 
-from collections.abc import Iterator
+from collections.abc import Iterator, Mapping
 from contextlib import contextmanager
 from typing import Any
 from unittest.mock import patch
 
+import pytest
 from opentelemetry._logs import (
     Logger,
     LoggerProvider,
@@ -17,7 +18,6 @@
     InMemoryLogRecordExporter,
     SimpleLogRecordProcessor,
 )
-from opentelemetry.util.types import _ExtendedAttributes
 
 from temporalio import workflow
 from temporalio.contrib.opentelemetry import ReplaySafeLoggerProvider
@@ -45,7 +45,13 @@ def test_replay_safe_logger_provider_emit_passes_through_outside_workflow():
     assert records[1].attributes and dict(records[1].attributes) == {"attr": "val"}
 
 
-def test_replay_safe_logger_provider_delegates_get_logger_arguments():
+@pytest.mark.parametrize(
+    "attributes",
+    [None, {"attr": "val"}, {"nested": {"values": [1, b"bytes", None]}}],
+)
+def test_replay_safe_logger_provider_delegates_get_logger_arguments(
+    attributes: Mapping[str, Any] | None,
+):
     class RecordingLoggerProvider(LoggerProvider):
         def __init__(self) -> None:
             self.calls: list[tuple] = []
@@ -56,7 +62,7 @@ def get_logger(
             name: str,
             version: str | None = None,
             schema_url: str | None = None,
-            attributes: _ExtendedAttributes | None = None,
+            attributes: Mapping[str, Any] | None = None,
         ) -> Logger:
             self.calls.append((name, version, schema_url, attributes))
             return self._inner.get_logger(name, version, schema_url, attributes)
@@ -67,11 +73,11 @@ def get_logger(
         "test-logger",
         version="1.2.3",
         schema_url="https://example.com/schema",
-        attributes={"attr": "val"},
+        attributes=attributes,
     )
 
     assert inner_provider.calls == [
-        ("test-logger", "1.2.3", "https://example.com/schema", {"attr": "val"})
+        ("test-logger", "1.2.3", "https://example.com/schema", attributes)
     ]