diff --git a/apps/remix-ide/ci/browser_tests_etherscan_plugin.sh b/apps/remix-ide/ci/browser_tests_etherscan_plugin.sh
index abcf86a45a..789c771908 100755
--- a/apps/remix-ide/ci/browser_tests_etherscan_plugin.sh
+++ b/apps/remix-ide/ci/browser_tests_etherscan_plugin.sh
@@ -6,7 +6,7 @@ BUILD_ID=${CIRCLE_BUILD_NUM:-${TRAVIS_JOB_NUMBER}}
 echo "$BUILD_ID"
 TEST_EXITCODE=0
 
-npx nx build etherscan
+yarn build etherscan
 yarn run serve:production &
 npx nx serve etherscan &
 
diff --git a/apps/remix-ide/ci/browser_tests_vyper_plugin.sh b/apps/remix-ide/ci/browser_tests_vyper_plugin.sh
index c417b4b2d5..8ea220cef1 100755
--- a/apps/remix-ide/ci/browser_tests_vyper_plugin.sh
+++ b/apps/remix-ide/ci/browser_tests_vyper_plugin.sh
@@ -6,7 +6,7 @@ BUILD_ID=${CIRCLE_BUILD_NUM:-${TRAVIS_JOB_NUMBER}}
 echo "$BUILD_ID"
 TEST_EXITCODE=0
 
-nx build vyper
+yarn build vyper
 yarn run serve:production &
 npx nx serve vyper &