diff --git a/Lab1/Lab1.TouristInformationCenter/Lab1.TouristInformationCenter.csproj b/Lab1/Lab1.TouristInformationCenter/Lab1.TouristInformationCenter.csproj
index 11d201f..f43fe22 100644
--- a/Lab1/Lab1.TouristInformationCenter/Lab1.TouristInformationCenter.csproj
+++ b/Lab1/Lab1.TouristInformationCenter/Lab1.TouristInformationCenter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Lab2/Lab2.TouristInformationCenter/Lab2.TouristInformationCenter.csproj b/Lab2/Lab2.TouristInformationCenter/Lab2.TouristInformationCenter.csproj
index 443bf0e..14abcc2 100644
--- a/Lab2/Lab2.TouristInformationCenter/Lab2.TouristInformationCenter.csproj
+++ b/Lab2/Lab2.TouristInformationCenter/Lab2.TouristInformationCenter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Lab3/Lab3.TouristInformationCenter/Lab3.TouristInformationCenter.csproj b/Lab3/Lab3.TouristInformationCenter/Lab3.TouristInformationCenter.csproj
index 0ebd173..920af23 100644
--- a/Lab3/Lab3.TouristInformationCenter/Lab3.TouristInformationCenter.csproj
+++ b/Lab3/Lab3.TouristInformationCenter/Lab3.TouristInformationCenter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Lab4/Lab4.ChainedWords/Lab4.ChainedWords.csproj b/Lab4/Lab4.ChainedWords/Lab4.ChainedWords.csproj
index 8a5bcb0..2854e50 100644
--- a/Lab4/Lab4.ChainedWords/Lab4.ChainedWords.csproj
+++ b/Lab4/Lab4.ChainedWords/Lab4.ChainedWords.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/Lab5/Lab5.TouristInformationCenter/Lab5.TouristInformationCenter.csproj b/Lab5/Lab5.TouristInformationCenter/Lab5.TouristInformationCenter.csproj
index 2a46536..06ebae9 100644
--- a/Lab5/Lab5.TouristInformationCenter/Lab5.TouristInformationCenter.csproj
+++ b/Lab5/Lab5.TouristInformationCenter/Lab5.TouristInformationCenter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>