diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index 6a793ef..6b2a01c 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "csharpier": {
-      "version": "0.16.0",
+      "version": "0.27.3",
       "commands": [
         "dotnet-csharpier"
       ]
@@ -15,7 +15,7 @@
       ]
     },
     "dotnet-ef": {
-      "version": "6.0.0",
+      "version": "8.0.0",
       "commands": [
         "dotnet-ef"
       ]
diff --git a/.idea/.idea.IntegreSql.EF/.idea/indexLayout.xml b/.idea/.idea.IntegreSql.EF/.idea/indexLayout.xml
index 7b08163..bbdf908 100644
--- a/.idea/.idea.IntegreSql.EF/.idea/indexLayout.xml
+++ b/.idea/.idea.IntegreSql.EF/.idea/indexLayout.xml
@@ -1,7 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="UserContentModel">
-    <attachedFolders />
+    <attachedFolders>
+      <Path>.config</Path>
+      <Path>.github</Path>
+      <Path>scripts</Path>
+    </attachedFolders>
     <explicitIncludes />
     <explicitExcludes />
   </component>
diff --git a/scripts/docker-compose.yml b/scripts/docker-compose.yml
index 266213b..bf14980 100644
--- a/scripts/docker-compose.yml
+++ b/scripts/docker-compose.yml
@@ -2,7 +2,7 @@ version: "3.4"
 services:
 
   integresql:
-    image: allaboutapps/integresql:1.0.0
+    image: ghcr.io/allaboutapps/integresql:v1.1.0
     restart: always
     depends_on:
       - postgres_internal
diff --git a/src/MccSoft.IntegreSql.EF/NpgsqlDatabaseInitializer.cs b/src/MccSoft.IntegreSql.EF/NpgsqlDatabaseInitializer.cs
index a1318f8..5e84216 100644
--- a/src/MccSoft.IntegreSql.EF/NpgsqlDatabaseInitializer.cs
+++ b/src/MccSoft.IntegreSql.EF/NpgsqlDatabaseInitializer.cs
@@ -143,11 +143,35 @@ await _integreSqlClient
         GetDatabaseDto newDatabase = await _integreSqlClient
             .GetTestDatabase(databaseHash)
             .ConfigureAwait(false);
-        return GetConnectionString(
+        var connectionString = GetConnectionString(
             newDatabase.Database.Config,
             newDatabase.Database.TemplateHash,
             newDatabase.Id
         );
+
+        // Due to https://github.com/allaboutapps/integresql/issues/17
+        // IntegreSQL returns connection string before database is actually available.
+        // So we have to wait.
+        await WaitUntilDatabaseIsCreated(connectionString);
+
+        return connectionString;
+    }
+
+    private async Task WaitUntilDatabaseIsCreated(string connectionString)
+    {
+        for (int i = 0; i < 100; i++)
+        {
+            try
+            {
+                await using var conn = new NpgsqlConnection(connectionString);
+                await conn.OpenAsync();
+                return;
+            }
+            catch (PostgresException e) when (e.SqlState == "3D000")
+            {
+                await Task.Delay(TimeSpan.FromMilliseconds(100));
+            }
+        }
     }
 
     /// <summary>