diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ceabfe354..0399bd2f3 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -104,7 +104,7 @@ publish-medusa-package:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_COMMIT_TAG
   script:
     - LAST_TAG=$(git describe --tags --abbrev=0)
-    - if [ $CI_COMMIT_TAG ];then MEDUSA_VERSION="$CI_COMMIT_TAG"; else MEDUSA_VERSION="$LAST_TAG-$CI_COMMIT_SHA"; fi
+    - if [ $CI_COMMIT_TAG ];then MEDUSA_VERSION="$CI_COMMIT_TAG"; else MEDUSA_VERSION="$LAST_TAG-$CI_COMMIT_SHORT_SHA"; fi
     - cd src/Nadeko.Medusa/
     - dotnet pack -c Release /p:Version=$MEDUSA_VERSION -o bin/Release/packed
     - dotnet nuget push bin/Release/packed/ --source https://www.myget.org/F/nadeko/api/v2/package --api-key "$MYGET_API_KEY"
diff --git a/src/Nadeko.Medusa/Nadeko.Medusa.csproj b/src/Nadeko.Medusa/Nadeko.Medusa.csproj
index 1b227d418..b21da76eb 100644
--- a/src/Nadeko.Medusa/Nadeko.Medusa.csproj
+++ b/src/Nadeko.Medusa/Nadeko.Medusa.csproj
@@ -17,4 +17,7 @@
       <PackageReference Include="YamlDotNet" Version="11.2.1" />
     </ItemGroup>
 
+    <PropertyGroup Condition=" '$(Version)' == '' ">
+        <Version>5.0.0</Version>
+    </PropertyGroup>
 </Project>