diff --git a/.github/workflows/generate_grpc_cache.yaml b/.github/workflows/generate_grpc_cache.yaml
index eababd39..4687fdc2 100644
--- a/.github/workflows/generate_grpc_cache.yaml
+++ b/.github/workflows/generate_grpc_cache.yaml
@@ -83,7 +83,7 @@ jobs:
           # If the build-args are not an EXACT match, it will result in a cache miss, which will require GRPC to be built from scratch.
           build-args: |
             GRPC_BASE_IMAGE=${{ matrix.grpc-base-image }}
-            GRPC_MAKEFLAGS=--jobs=2 --output-sync=target
+            GRPC_MAKEFLAGS=--jobs=1 --output-sync=target
             GRPC_VERSION=v1.70.0
           context: .
           file: ./Dockerfile
diff --git a/.github/workflows/image_build.yml b/.github/workflows/image_build.yml
index fbb71ed2..a59ce9b3 100644
--- a/.github/workflows/image_build.yml
+++ b/.github/workflows/image_build.yml
@@ -235,7 +235,7 @@ jobs:
             IMAGE_TYPE=${{ inputs.image-type }}
             BASE_IMAGE=${{ inputs.base-image }}
             GRPC_BASE_IMAGE=${{ inputs.grpc-base-image || inputs.base-image }}
-            GRPC_MAKEFLAGS=--jobs=2 --output-sync=target
+            GRPC_MAKEFLAGS=--jobs=1 --output-sync=target
             GRPC_VERSION=v1.70.0
             MAKEFLAGS=${{ inputs.makeflags }}
             SKIP_DRIVERS=${{ inputs.skip-drivers }}
@@ -264,7 +264,7 @@ jobs:
             IMAGE_TYPE=${{ inputs.image-type }}
             BASE_IMAGE=${{ inputs.base-image }}
             GRPC_BASE_IMAGE=${{ inputs.grpc-base-image || inputs.base-image }}
-            GRPC_MAKEFLAGS=--jobs=2 --output-sync=target
+            GRPC_MAKEFLAGS=--jobs=1 --output-sync=target
             GRPC_VERSION=v1.70.0
             MAKEFLAGS=${{ inputs.makeflags }}
             SKIP_DRIVERS=${{ inputs.skip-drivers }}