diff --git a/dependencies/Dependencies.csproj b/dependencies/Dependencies.csproj
index 21475aa..ff58d28 100644
--- a/dependencies/Dependencies.csproj
+++ b/dependencies/Dependencies.csproj
@@ -21,9 +21,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="VellumPdf.Layout" Version="1.5.4" />
+    <PackageReference Include="VellumPdf.Layout" Version="1.5.6" />
     <!-- VellumPdf.Kernel comes in transitively via VellumPdf.Layout. -->
-    <PackageReference Include="VellumPdf.Signing" Version="1.5.4" />
+    <PackageReference Include="VellumPdf.Signing" Version="1.5.6" />
   </ItemGroup>
 
 </Project>
diff --git a/dependencies/packages.lock.json b/dependencies/packages.lock.json
index 6fd433a..8666ad7 100644
--- a/dependencies/packages.lock.json
+++ b/dependencies/packages.lock.json
@@ -4,22 +4,22 @@
     "net10.0": {
       "VellumPdf.Layout": {
         "type": "Direct",
-        "requested": "[1.5.4, )",
-        "resolved": "1.5.4",
-        "contentHash": "Q0gAOe+3Maa7FfM0h6RrtzJrVx7NRVprobS2HgQIzoWlrEYzmMHsr5wX4MQj8dmM+bP65AuQJZufpWYkubcaqw==",
+        "requested": "[1.5.6, )",
+        "resolved": "1.5.6",
+        "contentHash": "ua4JE4ngDPrHmoX95IZOexfwzjbZ1rKU7al1vO1hSkewlJZcLkj2611XuB/hizOO26fx8fd+HWE7cFJipPfwIQ==",
         "dependencies": {
-          "VellumPdf.Kernel": "1.5.4"
+          "VellumPdf.Kernel": "1.5.6"
         }
       },
       "VellumPdf.Signing": {
         "type": "Direct",
-        "requested": "[1.5.4, )",
-        "resolved": "1.5.4",
-        "contentHash": "KHjoCKILt22B/EQP7A0Ld2IdRwxGuzUAGiGSY6rpAI4tYw741eU3SCIUBd+A6gbSkbMIdwbtmUMpniYK0LcbZA==",
+        "requested": "[1.5.6, )",
+        "resolved": "1.5.6",
+        "contentHash": "OIOEWdktyMgiRxASdpY4QsVuh4HuBxApfynrOzKe0lZVdXHkmaFAkCl/RtGKA1348SXZU2jBrXh5qdIrxtfgjA==",
         "dependencies": {
           "System.Security.Cryptography.Pkcs": "9.0.5",
-          "VellumPdf.Kernel": "1.5.4",
-          "VellumPdf.Layout": "1.5.4"
+          "VellumPdf.Kernel": "1.5.6",
+          "VellumPdf.Layout": "1.5.6"
         }
       },
       "System.Security.Cryptography.Pkcs": {
@@ -29,8 +29,8 @@
       },
       "VellumPdf.Kernel": {
         "type": "Transitive",
-        "resolved": "1.5.4",
-        "contentHash": "edOG0F+w9cn01vR98Hhu7H0OHgugIS7jwJjg8wUJhvdCORFx/T3vLDvIjCCeVTSL8M/dHa7qaT10L8pHhQMjOA=="
+        "resolved": "1.5.6",
+        "contentHash": "k8zjr5CnTrQqYvbm/VaKu4/XfA0z36vtmdA/UrVpaNq+NEu4bKVK1TJOqDP6mrrrtXLjGOZLH5PfOAjReAnvbw=="
       }
     }
   }