diff --git a/tools/run_tests/build_artifact_node.bat b/tools/run_tests/build_artifact_node.bat
index 2e0ecd21d0fe6e85164b85eb0a1c5152d921753c..890fb31a658989d8046fa493298b29ee5fc42fcf 100644
--- a/tools/run_tests/build_artifact_node.bat
+++ b/tools/run_tests/build_artifact_node.bat
@@ -33,6 +33,7 @@ set PATH=%PATH%;C:\Program Files\nodejs\;%APPDATA%\npm
 
 del /f /q BUILD || rmdir build /s /q
 
+call npm cache clean || goto :error
 call npm update || goto :error
 
 mkdir artifacts
diff --git a/tools/run_tests/build_artifact_node.sh b/tools/run_tests/build_artifact_node.sh
index 778a5c95d4a68d424250d5bafe6480a5159b3e22..326cf296133a9533f8b5a9328d11b2ee1d360ae5 100755
--- a/tools/run_tests/build_artifact_node.sh
+++ b/tools/run_tests/build_artifact_node.sh
@@ -40,6 +40,7 @@ rm -rf build || true
 
 mkdir -p artifacts
 
+npm cache clean
 npm update
 
 node_versions=( 0.12.0 1.0.0 1.1.0 2.0.0 3.0.0 4.0.0 5.0.0 6.0.0 7.0.0 )
diff --git a/tools/run_tests/pre_build_node.bat b/tools/run_tests/pre_build_node.bat
index a29456f9ed95eecbca0e2b86b04168ff09ca989b..addb01a2a4d43485646d68db9e7f4889a52d3e30 100644
--- a/tools/run_tests/pre_build_node.bat
+++ b/tools/run_tests/pre_build_node.bat
@@ -29,6 +29,5 @@
 
 set PATH=%PATH%;C:\Program Files\nodejs\;%APPDATA%\npm
 
-@rem Expire cache after 1 week
-call npm update --cache-min 604800
-
+@rem Expire cache after 1 day
+call npm update --cache-min 86400
diff --git a/tools/run_tests/pre_build_node.sh b/tools/run_tests/pre_build_node.sh
index 4879e7ad9bded4e63d61f8bf3aa26e93c8283f1c..e63be9da5231460ddaca3240fd9b78eef51a6556 100755
--- a/tools/run_tests/pre_build_node.sh
+++ b/tools/run_tests/pre_build_node.sh
@@ -37,8 +37,8 @@ set -ex
 
 export GRPC_CONFIG=${CONFIG:-opt}
 
-# Expire cache after 1 week
-npm update --cache-min 604800
+# Expire cache after 1 day
+npm update --cache-min 86400
 
 npm install node-gyp-install
 ./node_modules/.bin/node-gyp-install