diff --git a/pkgs/os-specific/linux/prl-tools/default.nix b/pkgs/os-specific/linux/prl-tools/default.nix
index 15ca9f9212e4..c6adc9c55f6e 100644
--- a/pkgs/os-specific/linux/prl-tools/default.nix
+++ b/pkgs/os-specific/linux/prl-tools/default.nix
@@ -37,13 +37,13 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "prl-tools";
-  version = "20.0.1-55659";
+  version = "20.1.0-55732";
 
   # We download the full distribution to extract prl-tools-lin.iso from
   # => ${dmg}/Parallels\ Desktop.app/Contents/Resources/Tools/prl-tools-lin.iso
   src = fetchurl {
     url = "https://download.parallels.com/desktop/v${lib.versions.major finalAttrs.version}/${finalAttrs.version}/ParallelsDesktop-${finalAttrs.version}.dmg";
-    hash = "sha256-5h8WZB7L6D9KOgIPSstN1sNcf3FZQiOQFB5MUC4YzvA=";
+    hash = "sha256-WKYsLcr7m6VAjYZu4BNxaarI7x/a7onlalQpV/Qws0w=";
   };
 
   hardeningDisable = [ "pic" "format" ];
diff --git a/pkgs/os-specific/linux/prl-tools/update.sh b/pkgs/os-specific/linux/prl-tools/update.sh
old mode 100644
new mode 100755
index 58b7c14c47fb..fad989127aed
--- a/pkgs/os-specific/linux/prl-tools/update.sh
+++ b/pkgs/os-specific/linux/prl-tools/update.sh
@@ -12,13 +12,12 @@ kb_url="https://kb.parallels.com/en/130212"
 content="$(curl -s "$kb_url")"
 
 # Match latest version from Parallels knowledge base
-regex='<meta property="og:description" content="[^"]*Parallels Desktop ([0-9]+) for Mac ([0-9]+\.[0-9]+\.[0-9+]) \(([0-9]+)\)[^"]*" />'
+regex='<meta property="og:description" content="[^"]*Parallels Desktop[\ 0-9]*for Mac ([0-9]+\.[0-9]+\.[0-9+]) \(([0-9]+)\)[^"]*" />'
 if [[ $content =~ $regex ]]; then
-    major_version="${BASH_REMATCH[1]}"
-    version="${BASH_REMATCH[2]}-${BASH_REMATCH[3]}"
-    echo "Found latest version: $version, major version: $major_version"
+    version="${BASH_REMATCH[1]}-${BASH_REMATCH[2]}"
+    echo "Found latest version: $version"
 else
-    echo "Failed to extract version from $kb_url"
+    echo "Failed to extract version from $kb_url" >&2
     exit 1
 fi
 
@@ -30,10 +29,11 @@ if [[ "$old_version" > "$version" || "$old_version" == "$version" ]]; then
 fi
 
 # Update version and hash
+major_version=$(echo $version | cut -d. -f1)
 dmg_url="https://download.parallels.com/desktop/v${major_version}/${version}/ParallelsDesktop-${version}.dmg"
 sha256="$(nix store prefetch-file $dmg_url --json | jq -r '.hash')"
-sed -i -e "s/version = \"$old_version\"/version = \"$version\"/" \
-    -e "s/hash = \"sha256-.*\"/hash = \"$sha256\"/" "$path"
+sed -i -e "s,version = \"$old_version\",version = \"$version\"," \
+    -e "s,hash = \"sha256-.*\",hash = \"$sha256\"," "$path"
 
 git commit -qm "linuxPackages_latest.prl-tools: $old_version -> $version" "$path"
 echo "Updated linuxPackages_latest.prl-tools $old_version -> $version"