diff --git a/api/BonchCalendar.sln b/api/BonchCalendar.sln
deleted file mode 100644
index 8b9bbd0..0000000
--- a/api/BonchCalendar.sln
+++ /dev/null
@@ -1,34 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.31903.59
-MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BonchCalendar", "BonchCalendar.csproj", "{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
-		Release|Any CPU = Release|Any CPU
-		Release|x64 = Release|x64
-		Release|x86 = Release|x86
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|x64.Build.0 = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|x86.ActiveCfg = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Debug|x86.Build.0 = Debug|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|Any CPU.Build.0 = Release|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|x64.ActiveCfg = Release|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|x64.Build.0 = Release|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|x86.ActiveCfg = Release|Any CPU
-		{811C13A0-E5FC-452C-8628-AD36B9A8A7E2}.Release|x86.Build.0 = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal
diff --git a/api/BonchCalendar.slnx b/api/BonchCalendar.slnx
new file mode 100644
index 0000000..f82a59c
--- /dev/null
+++ b/api/BonchCalendar.slnx
@@ -0,0 +1,3 @@
+<Solution>
+	<Project Path="BonchCalendar.csproj" />
+</Solution>