diff --git a/.bazelversion b/.bazelversion
index 21c8c7b46b..b26a34e470 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-7.1.1
+7.2.1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 36b3cc949c..208cf2b194 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,9 @@ Increment the:
 * [CONFIGURATION] File configuration - prometheus translation
   [#3715](https://github.com/open-telemetry/opentelemetry-cpp/pull/3715)
 
+* [BUILD] Upgrade to opentelemetry-proto 1.8.0
+  [#3730](https://github.com/open-telemetry/opentelemetry-cpp/pull/3730)
+
 ## [1.23 2025-09-25]
 
 * [CodeHealth] Fix clang-tidy warnings part 6
diff --git a/MODULE.bazel b/MODULE.bazel
index 191d6bb6e6..854ec59498 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -13,7 +13,7 @@ bazel_dep(name = "bazel_skylib", version = "1.7.1")
 bazel_dep(name = "curl", version = "8.8.0")
 bazel_dep(name = "grpc", version = "1.66.0.bcr.2", repo_name = "com_github_grpc_grpc")
 bazel_dep(name = "nlohmann_json", version = "3.12.0", repo_name = "github_nlohmann_json")
-bazel_dep(name = "opentelemetry-proto", version = "1.7.0", repo_name = "com_github_opentelemetry_proto")
+bazel_dep(name = "opentelemetry-proto", version = "1.8.0", repo_name = "com_github_opentelemetry_proto")
 bazel_dep(name = "opentracing-cpp", version = "1.6.0", repo_name = "com_github_opentracing")
 bazel_dep(name = "platforms", version = "0.0.11")
 bazel_dep(name = "prometheus-cpp", version = "1.3.0", repo_name = "com_github_jupp0r_prometheus_cpp")
diff --git a/install/cmake/third_party_latest b/install/cmake/third_party_latest
index 3dd9ef050b..c41dab1a1a 100644
--- a/install/cmake/third_party_latest
+++ b/install/cmake/third_party_latest
@@ -13,7 +13,7 @@ benchmark=v1.9.4
 googletest=v1.17.0
 ms-gsl=v4.2.0
 nlohmann-json=v3.12.0
-opentelemetry-proto=v1.7.0
+opentelemetry-proto=v1.8.0
 opentracing-cpp=v1.6.0
 prometheus-cpp=v1.3.0
 ryml=v0.9.0
diff --git a/third_party/opentelemetry-proto b/third_party/opentelemetry-proto
index 8654ab7a5a..c0a98a1847 160000
--- a/third_party/opentelemetry-proto
+++ b/third_party/opentelemetry-proto
@@ -1 +1 @@
-Subproject commit 8654ab7a5a43ca25fe8046e59dcd6935c3f76de0
+Subproject commit c0a98a1847d3124ac5f9ecd02d0e2d2732bbb590
diff --git a/third_party_release b/third_party_release
index 2bc8ef139c..76b8d189c5 100644
--- a/third_party_release
+++ b/third_party_release
@@ -22,7 +22,7 @@ benchmark=v1.9.4
 googletest=v1.17.0
 ms-gsl=v4.2.0
 nlohmann-json=v3.12.0
-opentelemetry-proto=v1.7.0
+opentelemetry-proto=v1.8.0
 opentracing-cpp=v1.6.0
 prometheus-cpp=v1.3.0
 ryml=v0.9.0