diff --git a/SparkyTestHelpers.AspNetMvc.UnitTests/packages.config b/SparkyTestHelpers.AspNetMvc.UnitTests/packages.config
index 439ad91..d5b549b 100644
--- a/SparkyTestHelpers.AspNetMvc.UnitTests/packages.config
+++ b/SparkyTestHelpers.AspNetMvc.UnitTests/packages.config
@@ -52,7 +52,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="net461" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net461" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net461" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net461" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net461" />
   <package id="System.Threading" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net461" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.0" targetFramework="net461" />