diff --git a/.bazelignore b/.bazelignore
index 56306fc4b9..bed28e88ac 100644
--- a/.bazelignore
+++ b/.bazelignore
@@ -1,3 +1,12 @@
-third_party
+bazel-bin
+bazel-opentelemetry-cpp
+bazel-out
+bazel-testlogs
+third_party/benchmark
+third_party/boost
+third_party/googletest
+third_party/nlohmann-json
+third_party/opentelemetry-proto
+third_party/prometheus-cpp
 tools
 out
diff --git a/WORKSPACE b/WORKSPACE
index e1041d37dd..2e157744af 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -29,10 +29,6 @@ load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
 
 grpc_extra_deps()
 
-load("@upb//bazel:repository_defs.bzl", "bazel_version_repository")
-
-bazel_version_repository(name = "upb_bazel_version")
-
 # Load prometheus C++ dependencies.
 load("@com_github_jupp0r_prometheus_cpp//bazel:repositories.bzl", "prometheus_cpp_repositories")
 
diff --git a/bazel/repository.bzl b/bazel/repository.bzl
index 59ed8b1ada..803e122461 100644
--- a/bazel/repository.bzl
+++ b/bazel/repository.bzl
@@ -31,11 +31,11 @@ def opentelemetry_cpp_deps():
     # Load gRPC dependency
     maybe(
         http_archive,
+        sha256 = "7372a881122cd85a7224435a1d58bc5e11c88d4fb98a64b83f36f3d1c2f16d39",
         name = "com_github_grpc_grpc",
-        sha256 = "d6277f77e0bb922d3f6f56c0f93292bb4cfabfc3c92b31ee5ccea0e100303612",
-        strip_prefix = "grpc-1.28.0",
+        strip_prefix = "grpc-1.34.0",
         urls = [
-            "https://github.com/grpc/grpc/archive/v1.28.0.tar.gz",
+            "https://github.com/grpc/grpc/archive/v1.34.0.tar.gz",
         ],
     )