diff --git a/src/scripts/install-pnpm.sh b/src/scripts/install-pnpm.sh
index 6eae5e3..35d0fd9 100644
--- a/src/scripts/install-pnpm.sh
+++ b/src/scripts/install-pnpm.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 if [[ $EUID == 0 ]]; then export SUDO=""; else export SUDO="sudo"; fi
 
 # FUNCTIONS
@@ -22,7 +24,7 @@ installation_check () {
           echo "A different version of pnpm is installed ($(pnpm --version)); removing it"
 
           $SUDO rm -rf "$(pnpm store path)" > /dev/null 2>&1
-          $SUDO rm -rf $PNPM_HOME > /dev/null 2>&1
+          $SUDO rm -rf "$PNPM_HOME" > /dev/null 2>&1
           $SUDO npm rm -g pnpm > /dev/null 2>&1
       fi
     fi
@@ -36,7 +38,7 @@ installation_check
 
 # install pnpm
 echo "Installing pnpm v$PNPM_ORB_VERSION"
-curl --retry 5 -fsSL https://get.pnpm.io/install.sh | env PNPM_VERSION=$PNPM_ORB_VERSION sh -
+curl --retry 5 -fsSL https://get.pnpm.io/install.sh | env PNPM_VERSION="$PNPM_ORB_VERSION" sh -
 
 # test/verify version
 echo "Verifying pnpm install"
diff --git a/src/scripts/packages/determine-lockfile.sh b/src/scripts/packages/determine-lockfile.sh
index c291cd0..32d8df5 100644
--- a/src/scripts/packages/determine-lockfile.sh
+++ b/src/scripts/packages/determine-lockfile.sh
@@ -14,10 +14,10 @@ elif [ -f "npm-shrinkwrap.json" ]; then
     cp npm-shrinkwrap.json "$TARGET_DIR"/node-project-lockfile
 elif [ -f "yarn.lock" ]; then
     echo "Found yarn.lock file, assuming lockfile"
-    cp yarn.lock $TARGET_DIR/node-project-lockfile
+    cp yarn.lock "$TARGET_DIR"/node-project-lockfile
 elif [ -f "pnpm-lock.yaml" ]; then
     echo "Found pnpm-lock.yaml file, assuming lockfile"
-    cp pnpm-lock.yaml $TARGET_DIR/node-project-lockfile
+    cp pnpm-lock.yaml "$TARGET_DIR"/node-project-lockfile
 else
     echo "Found no lockfile, adding empty one"
     touch "$TARGET_DIR"/node-project-lockfile
diff --git a/src/scripts/packages/pnpm-install.sh b/src/scripts/packages/pnpm-install.sh
index e9b70fe..7880f64 100644
--- a/src/scripts/packages/pnpm-install.sh
+++ b/src/scripts/packages/pnpm-install.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env bash
+
 # Run override ci command if provided, otherwise run default npm install
 if [[ -n "$PARAM_OVERRIDE_COMMAND" ]]; then
     echo "Running override package installation command:"