diff --git a/src/Cake.CsvHelper.Tests/packages.config b/src/Cake.CsvHelper.Tests/packages.config
index ccf02bd..2a3f1ae 100644
--- a/src/Cake.CsvHelper.Tests/packages.config
+++ b/src/Cake.CsvHelper.Tests/packages.config
@@ -36,7 +36,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" 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="4.4.0" targetFramework="net461" />