diff --git a/script/generate-licenses b/script/generate-licenses
index fb9ed83f28db814c51b831c5497b56b03660419a..9c0b92bdb112eb37d832631af1db40859e1327dc 100755
--- a/script/generate-licenses
+++ b/script/generate-licenses
@@ -18,7 +18,7 @@ echo -n "" >"$OUTPUT_FILE"
     echo -e "\n# ###### CODE LICENSES ######\n"
 } >>"$OUTPUT_FILE"
 
-if ! cargo about --version | grep "cargo-about $CARGO_ABOUT_VERSION" >/dev/null; then
+if ! cargo about --version | grep "cargo-about $CARGO_ABOUT_VERSION" 2>&1 >/dev/null; then
     echo "Installing cargo-about@^$CARGO_ABOUT_VERSION..."
     cargo install "cargo-about@^$CARGO_ABOUT_VERSION"
 else
diff --git a/script/generate-licenses-csv b/script/generate-licenses-csv
index ea02dcb72e5a08c1344564509e3e5a392964a509..7ffe0f3f1445d113c24644c61e00f90a4463a066 100755
--- a/script/generate-licenses-csv
+++ b/script/generate-licenses-csv
@@ -6,7 +6,7 @@ CARGO_ABOUT_VERSION="0.6"
 OUTPUT_FILE="${1:-$(pwd)/assets/licenses.csv}"
 TEMPLATE_FILE="script/licenses/template.csv.hbs"
 
-if ! cargo about --version | grep "cargo-about $CARGO_ABOUT_VERSION" > /dev/null; then
+if ! cargo about --version | grep "cargo-about $CARGO_ABOUT_VERSION" 2>&1 > /dev/null; then
   echo "Installing cargo-about@^$CARGO_ABOUT_VERSION..."
   cargo install "cargo-about@^$CARGO_ABOUT_VERSION"
 else