diff --git a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.10.____cpython.yaml
index 966d026..3ddcf82 100644
--- a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.10.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.11.____cpython.yaml
index 7723224..fec61da 100644
--- a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.11.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.12.____cpython.yaml
index b143ca3..20992a5 100644
--- a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2.0python3.12.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2python3.13.____cp313.yaml b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2python3.13.____cp313.yaml
index c9f3655..7dea8fa 100644
--- a/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2python3.13.____cp313.yaml
+++ b/.ci_support/linux_64_c_compiler_version12cuda_compilercuda-nvcccuda_compiler_version12.6cxx_compiler_version12numpy2python3.13.____cp313.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
index 26faf20..50d36fb 100644
--- a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
index 60f304a..12b4d43 100644
--- a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
index de2581c..8741e35 100644
--- a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
index 583d44f..a988d15 100644
--- a/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
+++ b/.ci_support/linux_64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 nccl:
 - '2'
 numpy:
diff --git a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
index 8cce269..8d16c0a 100644
--- a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.10.____cpython.yaml
@@ -1,5 +1,3 @@
-BUILD:
-- aarch64-conda_cos7-linux-gnu
 c_compiler:
 - gcc
 c_compiler_version:
@@ -8,8 +6,6 @@ c_stdlib:
 - sysroot
 c_stdlib_version:
 - '2.17'
-cdt_arch:
-- aarch64
 cdt_name:
 - conda
 channel_sources:
@@ -33,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 numpy:
 - '2.0'
 openssl:
diff --git a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
index 321a21f..b526abc 100644
--- a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.11.____cpython.yaml
@@ -1,5 +1,3 @@
-BUILD:
-- aarch64-conda_cos7-linux-gnu
 c_compiler:
 - gcc
 c_compiler_version:
@@ -8,8 +6,6 @@ c_stdlib:
 - sysroot
 c_stdlib_version:
 - '2.17'
-cdt_arch:
-- aarch64
 cdt_name:
 - conda
 channel_sources:
@@ -33,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 numpy:
 - '2.0'
 openssl:
diff --git a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
index 4c19c76..9f52a56 100644
--- a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2.0python3.12.____cpython.yaml
@@ -1,5 +1,3 @@
-BUILD:
-- aarch64-conda_cos7-linux-gnu
 c_compiler:
 - gcc
 c_compiler_version:
@@ -8,8 +6,6 @@ c_stdlib:
 - sysroot
 c_stdlib_version:
 - '2.17'
-cdt_arch:
-- aarch64
 cdt_name:
 - conda
 channel_sources:
@@ -33,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 numpy:
 - '2.0'
 openssl:
diff --git a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
index 652618e..99b51c2 100644
--- a/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
+++ b/.ci_support/linux_aarch64_c_compiler_version13cuda_compilerNonecuda_compiler_versionNonecxx_compiler_version13numpy2python3.13.____cp313.yaml
@@ -1,5 +1,3 @@
-BUILD:
-- aarch64-conda_cos7-linux-gnu
 c_compiler:
 - gcc
 c_compiler_version:
@@ -8,8 +6,6 @@ c_stdlib:
 - sysroot
 c_stdlib_version:
 - '2.17'
-cdt_arch:
-- aarch64
 cdt_name:
 - conda
 channel_sources:
@@ -33,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 numpy:
 - '2'
 openssl:
diff --git a/.ci_support/migrations/libgrpc167_libprotobuf5282.yaml b/.ci_support/migrations/libgrpc167_libprotobuf5282.yaml
new file mode 100644
index 0000000..67f50fd
--- /dev/null
+++ b/.ci_support/migrations/libgrpc167_libprotobuf5282.yaml
@@ -0,0 +1,10 @@
+__migrator:
+  build_number: 1
+  commit_message: Rebuild for libgrpc 1.67 & libprotobuf 5.28.2
+  kind: version
+  migration_number: 1
+libgrpc:
+- "1.67"
+libprotobuf:
+- 5.28.2
+migrator_ts: 1729238463
diff --git a/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
index 91ca282..c357998 100644
--- a/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.10.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
diff --git a/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
index d10153c..6bc5315 100644
--- a/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.11.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
diff --git a/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml b/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
index cd0a5a8..f8a5422 100644
--- a/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/osx_64_numpy2.0python3.12.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
diff --git a/.ci_support/osx_64_numpy2python3.13.____cp313.yaml b/.ci_support/osx_64_numpy2python3.13.____cp313.yaml
index 21018fa..e1390b5 100644
--- a/.ci_support/osx_64_numpy2python3.13.____cp313.yaml
+++ b/.ci_support/osx_64_numpy2python3.13.____cp313.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - x86_64-apple-darwin13.4.0
 numpy:
diff --git a/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
index 45b1db1..a8fe936 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.10.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - arm64-apple-darwin20.0.0
 numpy:
diff --git a/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
index 8a73122..31b0369 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.11.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - arm64-apple-darwin20.0.0
 numpy:
diff --git a/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml b/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
index e87533e..822f58d 100644
--- a/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
+++ b/.ci_support/osx_arm64_numpy2.0python3.12.____cpython.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - arm64-apple-darwin20.0.0
 numpy:
diff --git a/.ci_support/osx_arm64_numpy2python3.13.____cp313.yaml b/.ci_support/osx_arm64_numpy2python3.13.____cp313.yaml
index b8541dd..6dd11ea 100644
--- a/.ci_support/osx_arm64_numpy2python3.13.____cp313.yaml
+++ b/.ci_support/osx_arm64_numpy2python3.13.____cp313.yaml
@@ -29,9 +29,9 @@ github_actions_labels:
 libabseil:
 - '20240722'
 libgrpc:
-- '1.65'
+- '1.67'
 libprotobuf:
-- 5.27.5
+- 5.28.2
 macos_machine:
 - arm64-apple-darwin20.0.0
 numpy:
diff --git a/.scripts/run_osx_build.sh b/.scripts/run_osx_build.sh
index 0b36498..0e3c394 100755
--- a/.scripts/run_osx_build.sh
+++ b/.scripts/run_osx_build.sh
@@ -6,8 +6,9 @@ source .scripts/logging_utils.sh
 
 set -xe
 
-MINIFORGE_HOME=${MINIFORGE_HOME:-${HOME}/miniforge3}
-MINIFORGE_HOME=${MINIFORGE_HOME%/} # remove trailing slash
+MINIFORGE_HOME="${MINIFORGE_HOME:-${HOME}/miniforge3}"
+MINIFORGE_HOME="${MINIFORGE_HOME%/}" # remove trailing slash
+export CONDA_BLD_PATH="${CONDA_BLD_PATH:-${MINIFORGE_HOME}/conda-bld}"
 
 ( startgroup "Provisioning base env with micromamba" ) 2> /dev/null
 MICROMAMBA_VERSION="1.5.10-0"
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index eed0c04..381bb46 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,5 +1,5 @@
 {% set version = "0.4.34" %}
-{% set build = 1 %}
+{% set build = 2 %}
 
 {% if cuda_compiler_version != "None" %}
 {% set build = build + 200 %}
@@ -37,6 +37,7 @@ requirements:
     - python                                 # [build_platform != target_platform]
     - cross-python_{{ target_platform }}     # [build_platform != target_platform]
     - numpy                                  # [build_platform != target_platform]
+    - zlib                                   # [build_platform != target_platform]
     - unzip
     - rsync  # [(cuda_compiler_version or "").startswith("12")]
     # Keep bazel listed twice here to help the migrators track dependencies