diff --git a/assets/help.svg b/assets/help.svg
index a042912..fd364d7 100644
--- a/assets/help.svg
+++ b/assets/help.svg
@@ -88,9 +88,9 @@
             <circle cx="22" cy="0" r="7" fill="#febc2e"/>
             <circle cx="44" cy="0" r="7" fill="#28c840"/>
             </g>
-        
+
     <g transform="translate(18.166666666666664, 41) scale(.95)" clip-path="url(#terminal-747138606-clip-terminal)">
-    
+
     <g class="terminal-747138606-matrix">
     <text class="terminal-747138606-r1" x="0" y="20" textLength="402.6" clip-path="url(#terminal-747138606-line-0)">Update&#160;MonoLisa&#160;with&#160;Nerd&#160;Fonts!&#160;</text><text class="terminal-747138606-r2" x="549" y="20" textLength="12.2" clip-path="url(#terminal-747138606-line-0)">
 </text><text class="terminal-747138606-r2" x="549" y="44.4" textLength="12.2" clip-path="url(#terminal-747138606-line-1)">
diff --git a/bin/patch-monolisa b/bin/patch-monolisa
index 910e5cc..5d9c3c5 100755
--- a/bin/patch-monolisa
+++ b/bin/patch-monolisa
@@ -150,7 +150,7 @@ def patch_single_font(
 
     if fp_args:
         cmd += fp_args.split(" ")
-    
+
     if verbose:
         echo(f"cmd: {' '.join(cmd)}")
         run_cmd(cmd, font_path, verbose)
@@ -220,7 +220,7 @@ def main():
     if fp_args:
         echo(f"Flags passed to font-patcher: {fp_args}")
     if args.verbose:
-        echo(f"Patching the following files")
+        echo("Patching the following files")
         for fontfile in args.font_path:
             sys.stdout.write(f"  {color.magenta}->{color.end} {fontfile}\n")
     if args.docker:
diff --git a/bin/update-fonts b/bin/update-fonts
index 6acf934..6d98c33 100755
--- a/bin/update-fonts
+++ b/bin/update-fonts
@@ -7,7 +7,7 @@ INSTALL_DIR=~/.local/share/fonts/MonoLisa
 
 mkdir -p $INSTALL_DIR
 
-for font_dir in $PATCHED_FONTS/*; do
+for font_dir in "$PATCHED_FONTS"/*; do
 	patched_dir="${font_dir##*/}"
 	echo ">>> $patched_dir"
 
@@ -15,10 +15,10 @@ for font_dir in $PATCHED_FONTS/*; do
 
 	if [[ -d ${dest} ]]; then
 		echo "deleting existing version"
-		rm -rf $dest
+		rm -rf "$dest"
 	fi
 
-	mkdir $dest && cp -v $font_dir/* $dest
+	mkdir "$dest" && cp -v "$font_dir"/* "$dest"
 done
 
 echo "Don't forget to run 'fc-cache -f -v'"
diff --git a/bin/update-src b/bin/update-src
index 293c051..917b47a 100755
--- a/bin/update-src
+++ b/bin/update-src
@@ -5,7 +5,7 @@ REPO_URL=git@github.com:ryanoasis/nerd-fonts.git
 rm -rf nerd-fonts
 
 git clone --filter=blob:none --no-checkout --depth 1 --sparse $REPO_URL
-cd nerd-fonts
+cd nerd-fonts || exit
 git sparse-checkout add src/glyphs
 git checkout