diff --git a/action.yml b/action.yml
index bf92510..999ccb7 100644
--- a/action.yml
+++ b/action.yml
@@ -62,7 +62,7 @@ runs:
       run: |
         output=
         for package in ${{ inputs.packages }}; do
-          output=$output,$package:$(dpkg -s xdot | grep Version | awk '{print $2}')
+          output=$output,$package:$(dpkg -s $package | grep Version | awk '{print $2}')
         done
-        ::set-output name=package_version_list::output
+        echo '::set-output name=package_version_list::output'
       shell: bash
diff --git a/create_cache_key.sh b/create_cache_key.sh
index 9d5c98f..3fd0536 100755
--- a/create_cache_key.sh
+++ b/create_cache_key.sh
@@ -6,16 +6,18 @@ set -e
 version=$1
 packages=${@:2}
 
-echo "* Creating cache key..."
+echo "::group::Create Cache Key"
 
 # Remove package delimiters, sort (requires newline) and then convert back to inline list.
 normalized_list=$(echo $packages | sed 's/[\s,]+/ /g' | tr ' ' '\n' | sort | tr '\n' ' ')
-echo "* Normalized package list is '$normalized_list'."
+echo "::debug::Normalized package list is '$normalized_list'."
 
 value=$(echo $normalized_list @ $version)
-echo "* Value to hash is '$value'."
+echo "::debug::Value to hash is '$value'."
 
 key=$(echo $value | md5sum | /bin/cut -f1 -d' ')
-echo "* Value hashed as '$key'."
+echo "::debug::Value hashed as '$key'."
+
+echo "::endgroup::"
 
 echo "CACHE_KEY=$key" >> $GITHUB_ENV
\ No newline at end of file
diff --git a/validate_pkgs.sh b/validate_pkgs.sh
index e06e463..0b24b79 100755
--- a/validate_pkgs.sh
+++ b/validate_pkgs.sh
@@ -3,28 +3,27 @@
 version=$1
 packages=${@:2}
 
-echo -n "* Validating action arguments... ";
+echo "::group::Validate Action Arguments";
 
 echo $version | grep -o " " > /dev/null
 if [ $? -eq 0 ]; then
-  echo "aborted."
-  echo "* Version value '$version' cannot contain spaces." >&2
+  echo "::error::Aborted. Version value '$version' cannot contain spaces." >&2
   exit 1
 fi
+echo "::debug::Version '$version' is valid."
 
 if [ "$packages" == "" ]; then
-  echo "aborted."
-  echo "* Packages argument cannot be empty." >&2
+  echo "::error::Aborted. Packages argument cannot be empty." >&2
   exit 2
 fi
 
 for package in $packages; do
   apt-cache search ^$package$ | grep $package > /dev/null
   if [ $? -ne 0 ]; then
-    echo "aborted."
-    echo "* Package '$package' not found." >&2
+    echo "::error::Aborted. Package '$package' not found." >&2
     exit 3
   fi
 done
+echo "::debug::Packages '$packages' are valid."
 
-echo "done."
+echo "::endgroup::"