diff --git a/.github/workflows/clang-tidy.yaml b/.github/workflows/clang-tidy.yaml
index a08ee66897..f6a216e218 100644
--- a/.github/workflows/clang-tidy.yaml
+++ b/.github/workflows/clang-tidy.yaml
@@ -17,9 +17,9 @@ jobs:
       matrix:
         include:
           - cmake_options: all-options-abiv1-preview
-            warning_limit: 53
+            warning_limit: 50
           - cmake_options: all-options-abiv2-preview
-            warning_limit: 55
+            warning_limit: 52
     env:
       CC: /usr/bin/clang-18
       CXX: /usr/bin/clang++-18
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 361d73a234..4f34bb69d3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -49,6 +49,9 @@ Increment the:
 * [BAZEL] Add ENABLE_OTLP_GRPC_SSL_MTLS_PREVIEW define to otlp_grpc_log_record_exporter
   [#3988](https://github.com/open-telemetry/opentelemetry-cpp/pull/3988)
 
+* [CODE HEALTH] Fix clang-tidy narrowing conversions in baggage
+  [#3989](https://github.com/open-telemetry/opentelemetry-cpp/pull/3989)
+
 Important changes:
 
 * Enable WITH_OTLP_RETRY_PREVIEW by default
diff --git a/api/include/opentelemetry/baggage/baggage.h b/api/include/opentelemetry/baggage/baggage.h
index 6e2354366c..0dbf21281a 100644
--- a/api/include/opentelemetry/baggage/baggage.h
+++ b/api/include/opentelemetry/baggage/baggage.h
@@ -235,8 +235,8 @@ class OPENTELEMETRY_EXPORT Baggage
       else
       {
         ret.push_back('%');
-        ret.push_back(to_hex(c >> 4));
-        ret.push_back(to_hex(c & 15));
+        ret.push_back(to_hex(static_cast<char>(c >> 4)));
+        ret.push_back(to_hex(static_cast<char>(c & 15)));
       }
     }
 
@@ -267,7 +267,7 @@ class OPENTELEMETRY_EXPORT Baggage
           err = 1;
           return "";
         }
-        ret.push_back(from_hex(str[i + 1]) << 4 | from_hex(str[i + 2]));
+        ret.push_back(static_cast<char>(from_hex(str[i + 1]) << 4 | from_hex(str[i + 2])));
         i += 2;
       }
       else if (str[i] == '+')