diff --git a/tools/test/bin/stc b/tools/test/bin/stc
index 4e4c2d8..751607d 100755
--- a/tools/test/bin/stc
+++ b/tools/test/bin/stc
@@ -28,7 +28,7 @@
 if [ ! -f $JAR ]; then
     printf "Downloading STC binary..."
     mkdir -p /tmp/stc $(dirname $JAR)
-    curl http://repo1.maven.org/maven2/$MVN_JAR > $JAR
+    curl https://repo1.maven.org/maven2/$MVN_JAR > $JAR
     [ -f $JAR ] && printf "Done.\n"
 fi