diff --git a/fern/apis/api/generators.yml b/fern/apis/api/generators.yml
index 78367477..9396fecb 100644
--- a/fern/apis/api/generators.yml
+++ b/fern/apis/api/generators.yml
@@ -6,6 +6,7 @@ api:
       settings:
         title-as-schema-name: false
         coerce-enums-to-literals: false
+        respect-nullable-schemas: true
 groups:
   python-sdk:
     generators:
@@ -28,7 +29,7 @@ groups:
   ts-sdk:
     generators:
       - name: fernapi/fern-typescript-node-sdk
-        version: 0.49.3
+        version: 0.51.3
         disable-examples: true
         api:
           settings:
@@ -49,7 +50,7 @@ groups:
   java-sdk:
     generators:
       - name: fernapi/fern-java-sdk
-        version: 2.16.0
+        version: 2.32.9
         disable-examples: true
         output:
           location: maven
@@ -63,7 +64,7 @@ groups:
   go-sdk:
     generators:
       - name: fernapi/fern-go-sdk
-        version: 0.36.5
+        version: 0.37.2
         disable-examples: true
         api:
           settings:
@@ -88,7 +89,7 @@ groups:
   csharp-sdk:
     generators:
       - name: fernapi/fern-csharp-sdk
-        version: 1.9.31
+        version: 1.16.1
         disable-examples: true
         github:
           repository: VapiAI/server-sdk-csharp