diff --git a/packages/Delphi 10.4 Sydney/OmniThreadLibraryDesigntime.dproj b/packages/Delphi 10.4 Sydney/OmniThreadLibraryDesigntime.dproj
index 7dcff430..dd09d0f8 100644
--- a/packages/Delphi 10.4 Sydney/OmniThreadLibraryDesigntime.dproj	
+++ b/packages/Delphi 10.4 Sydney/OmniThreadLibraryDesigntime.dproj	
@@ -59,7 +59,7 @@
         <DCC_SymbolReferenceInfo>0</DCC_SymbolReferenceInfo>
         <DCC_ImageBase>00400000</DCC_ImageBase>
         <DCC_Platform>x86</DCC_Platform>
-        <DllSuffix>260</DllSuffix>
+        <DllSuffix>270</DllSuffix>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Base_Win32)'!=''">
         <AppEnableRuntimeThemes>true</AppEnableRuntimeThemes>
diff --git a/packages/Delphi 10.4 Sydney/OmniThreadLibraryRuntime.dproj b/packages/Delphi 10.4 Sydney/OmniThreadLibraryRuntime.dproj
index 79570e51..e203f423 100644
--- a/packages/Delphi 10.4 Sydney/OmniThreadLibraryRuntime.dproj	
+++ b/packages/Delphi 10.4 Sydney/OmniThreadLibraryRuntime.dproj	
@@ -61,7 +61,7 @@
         <GenPackage>true</GenPackage>
         <DCC_ImageBase>00400000</DCC_ImageBase>
         <DCC_Platform>x86</DCC_Platform>
-        <DllSuffix>260</DllSuffix>
+        <DllSuffix>270</DllSuffix>
     </PropertyGroup>
     <PropertyGroup Condition="'$(Base_Win32)'!=''">
         <AppEnableRuntimeThemes>true</AppEnableRuntimeThemes>