diff --git a/builds/msvc/vs2026/libbitcoin-database-test/libbitcoin-database-test.vcxproj b/builds/msvc/vs2026/libbitcoin-database-test/libbitcoin-database-test.vcxproj
index 58241b51..63efd201 100644
--- a/builds/msvc/vs2026/libbitcoin-database-test/libbitcoin-database-test.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-database-test/libbitcoin-database-test.vcxproj
@@ -236,7 +236,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -252,7 +252,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>
     <ProjectReference Include="..\libbitcoin-database\libbitcoin-database.vcxproj">
diff --git a/builds/msvc/vs2026/libbitcoin-database-test/packages.config b/builds/msvc/vs2026/libbitcoin-database-test/packages.config
index ed441d53..5ad5c696 100644
--- a/builds/msvc/vs2026/libbitcoin-database-test/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-database-test/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc145" version="4.3.0.3" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc145" version="4.4.0.1" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/libbitcoin-database-tools/libbitcoin-database-tools.vcxproj b/builds/msvc/vs2026/libbitcoin-database-tools/libbitcoin-database-tools.vcxproj
index da24ea75..d0ee7e9d 100644
--- a/builds/msvc/vs2026/libbitcoin-database-tools/libbitcoin-database-tools.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-database-tools/libbitcoin-database-tools.vcxproj
@@ -139,7 +139,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -154,7 +154,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>
     <ProjectReference Include="..\libbitcoin-database\libbitcoin-database.vcxproj">
diff --git a/builds/msvc/vs2026/libbitcoin-database-tools/packages.config b/builds/msvc/vs2026/libbitcoin-database-tools/packages.config
index 06a4118e..b68ba9a3 100644
--- a/builds/msvc/vs2026/libbitcoin-database-tools/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-database-tools/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc145" version="4.3.0.3" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc145" version="4.4.0.1" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />
diff --git a/builds/msvc/vs2026/libbitcoin-database/libbitcoin-database.vcxproj b/builds/msvc/vs2026/libbitcoin-database/libbitcoin-database.vcxproj
index d9d11598..6f098d2d 100644
--- a/builds/msvc/vs2026/libbitcoin-database/libbitcoin-database.vcxproj
+++ b/builds/msvc/vs2026/libbitcoin-database/libbitcoin-database.vcxproj
@@ -295,7 +295,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
@@ -310,7 +310,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.3.0.3\build\native\UltrafastSecp256k1-vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.4.0.1\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>
     <Natvis Include="..\..\debug.natvis" />
diff --git a/builds/msvc/vs2026/libbitcoin-database/packages.config b/builds/msvc/vs2026/libbitcoin-database/packages.config
index 06a4118e..b68ba9a3 100644
--- a/builds/msvc/vs2026/libbitcoin-database/packages.config
+++ b/builds/msvc/vs2026/libbitcoin-database/packages.config
@@ -6,7 +6,7 @@
  |
  -->
 <packages>
-  <package id="UltrafastSecp256k1-vc145" version="4.3.0.3" targetFramework="Native" />
+  <package id="UltrafastSecp256k1-vc145" version="4.4.0.1" targetFramework="Native" />
   <package id="libbitcoin-boost" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_container-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_iostreams-vc145" version="1.91.0" targetFramework="Native" />