diff --git a/src/Admin.UnitTests/packages.config b/src/Admin.UnitTests/packages.config
index f85d380a..33a2303b 100644
--- a/src/Admin.UnitTests/packages.config
+++ b/src/Admin.UnitTests/packages.config
@@ -21,6 +21,6 @@
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net48" />
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" targetFramework="net48" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net45" requireReinstallation="true" />
-  <package id="TestableIO.System.IO.Abstractions" version="19.1.18" targetFramework="net481" />
+  <package id="TestableIO.System.IO.Abstractions" version="19.2.4" targetFramework="net481" />
   <package id="TestableIO.System.IO.Abstractions.Wrappers" version="19.1.18" targetFramework="net481" />
 </packages>
\ No newline at end of file
diff --git a/src/Admin/packages.config b/src/Admin/packages.config
index 54db498d..51eab211 100644
--- a/src/Admin/packages.config
+++ b/src/Admin/packages.config
@@ -42,7 +42,7 @@
   <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net48" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net48" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
-  <package id="TestableIO.System.IO.Abstractions" version="19.1.18" targetFramework="net481" />
+  <package id="TestableIO.System.IO.Abstractions" version="19.2.4" targetFramework="net481" />
   <package id="TestableIO.System.IO.Abstractions.Wrappers" version="19.1.18" targetFramework="net481" />
   <package id="Unity" version="5.11.10" targetFramework="net45" requireReinstallation="true" />
   <package id="Unity.Abstractions" version="5.11.7" targetFramework="net472" requireReinstallation="true" />
diff --git a/src/BusinessLogic.UnitTests/packages.config b/src/BusinessLogic.UnitTests/packages.config
index f73d2f1e..c01b2e54 100644
--- a/src/BusinessLogic.UnitTests/packages.config
+++ b/src/BusinessLogic.UnitTests/packages.config
@@ -27,6 +27,6 @@
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net48" />
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" targetFramework="net48" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net45" requireReinstallation="true" />
-  <package id="TestableIO.System.IO.Abstractions" version="19.1.18" targetFramework="net481" />
+  <package id="TestableIO.System.IO.Abstractions" version="19.2.4" targetFramework="net481" />
   <package id="TestableIO.System.IO.Abstractions.Wrappers" version="19.1.18" targetFramework="net481" />
 </packages>
\ No newline at end of file
diff --git a/src/BusinessLogic/packages.config b/src/BusinessLogic/packages.config
index 0e3787de..d3a68335 100644
--- a/src/BusinessLogic/packages.config
+++ b/src/BusinessLogic/packages.config
@@ -20,7 +20,7 @@
   <package id="System.Reflection.Emit.Lightweight" version="4.7.0" targetFramework="net48" />
   <package id="System.Runtime.CompilerServices.Unsafe" version="6.0.0" targetFramework="net48" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />
-  <package id="TestableIO.System.IO.Abstractions" version="19.1.18" targetFramework="net481" />
+  <package id="TestableIO.System.IO.Abstractions" version="19.2.4" targetFramework="net481" />
   <package id="TestableIO.System.IO.Abstractions.Wrappers" version="19.1.18" targetFramework="net481" />
   <package id="Unity" version="5.11.10" targetFramework="net45" requireReinstallation="true" />
   <package id="Unity.Abstractions" version="5.11.7" targetFramework="net472" requireReinstallation="true" />