diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index 6d4bfb4177..8eab85b55d 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -923,6 +923,49 @@ tasks:
   #   test_targets:
   #     - "--"
   #     - "//..."
+  extensions_prost_linux:
+    platform: ubuntu2004
+    name: Extensions Prost
+    working_directory: extensions/prost
+    build_flags: *aspects_flags
+    test_flags: *aspects_flags
+    build_targets:
+      - "//..."
+    test_targets:
+      - "//..."
+  extensions_prost_linux_rbe:
+    platform: rbe_ubuntu2004
+    name: Extensions Prost
+    working_directory: extensions/prost
+    shell_commands:
+      - sed -i 's/^# load("@bazel_ci_rules/load("@bazel_ci_rules/' WORKSPACE.bazel
+      - sed -i 's/^# rbe_preconfig/rbe_preconfig/' WORKSPACE.bazel
+    build_flags: *aspects_flags
+    test_flags: *aspects_flags
+    build_targets:
+      - "//..."
+    test_targets:
+      - "//..."
+  extensions_prost_macos:
+    platform: macos_arm64
+    name: Extensions Prost
+    working_directory: extensions/prost
+    build_flags: *aspects_flags
+    test_flags: *aspects_flags
+    build_targets:
+      - "//..."
+    test_targets:
+      - "//..."
+  extensions_prost_windows:
+    platform: windows
+    name: Extensions Prost
+    working_directory: extensions/prost
+    build_flags: *aspects_flags
+    test_flags: *aspects_flags
+    build_targets:
+      - "//..."
+    test_targets:
+      - "//..."
   extensions_protobuf_linux:
     platform: ubuntu2004
     name: Extensions Protobuf