diff --git a/deployments/julia/image/install-mambaforge.bash b/deployments/julia/image/install-mambaforge.bash
index ed319f83c..d782f48f2 100755
--- a/deployments/julia/image/install-mambaforge.bash
+++ b/deployments/julia/image/install-mambaforge.bash
@@ -3,7 +3,7 @@
 set -ex
 
 cd $(dirname $0)
-MAMBAFORGE_VERSION=22.3.1-1
+MAMBAFORGE_VERSION='22.3.1-1'
 
 URL="https://github.com/conda-forge/miniforge/releases/download/${MAMBAFORGE_VERSION}/Mambaforge-${MAMBAFORGE_VERSION}-Linux-x86_64.sh"
 INSTALLER_PATH=/tmp/mambaforge-installer.sh