diff --git a/utils/packpack/startpackpack.sh b/utils/packpack/startpackpack.sh
index 48e2de56c..f1b17d446 100755
--- a/utils/packpack/startpackpack.sh
+++ b/utils/packpack/startpackpack.sh
@@ -130,13 +130,12 @@ commonprep () {
         fi
     fi
 
-    CxxUrlVER="0.3"
+    CxxUrlVER="eaf46c0207df24853a238d4499e7f4426d9d234c"
     if [ -e "build/CxxUrl-${CxxUrlVER}.tar.gz" ]; then
         echo "Found existing CxxUrl tarball..."
     else
         echo "Retrieving CxxUrl ${CxxUrlVER} submodule..."
-        # The dir that results from untar doesn't have the v
-        curl -L https://github.com/chmike/CxxUrl/archive/refs/tags/v${CxxUrlVER}.tar.gz > build/CxxUrl-${CxxUrlVER}.tar.gz
+        curl -L https://github.com/chmike/CxxUrl/archive/${CxxUrlVER}.tar.gz > build/CxxUrl-${CxxUrlVER}.tar.gz
         if [ $? -ne 0 ]; then
             echo "ERROR: CxxUrl tarball retrieval failed..."
             exit 1