diff --git a/packages/@cdktf/commons/src/provider-schema.ts b/packages/@cdktf/commons/src/provider-schema.ts
index 449928d059..1a7b9cf448 100644
--- a/packages/@cdktf/commons/src/provider-schema.ts
+++ b/packages/@cdktf/commons/src/provider-schema.ts
@@ -57,6 +57,7 @@ interface BaseAttribute {
   optional?: boolean;
   computed?: boolean;
   sensitive?: boolean;
+  deprecated?: boolean;
 }
 
 interface NestedTypeAttribute extends BaseAttribute {
diff --git a/packages/@cdktf/provider-generator/lib/get/generator/resource-parser.ts b/packages/@cdktf/provider-generator/lib/get/generator/resource-parser.ts
index 62c856e4c4..15a158eeda 100644
--- a/packages/@cdktf/provider-generator/lib/get/generator/resource-parser.ts
+++ b/packages/@cdktf/provider-generator/lib/get/generator/resource-parser.ts
@@ -139,7 +139,7 @@ class Parser {
     const fileName = getFileName(provider, baseName);
 
     const filePath = `providers/${toSnakeCase(provider)}/${fileName}`;
-    const attributes = this.renderAttributesForBlock(
+    let attributes = this.renderAttributesForBlock(
       new Scope({
         name: baseName,
         isProvider,
@@ -211,6 +211,17 @@ class Parser {
       }
     );
 
+    // Remove deprecated attributes that may conflict after being snake cased
+    // Example: oci_core_ipsec_connection_tunnel_management (hashicorp/oci@=5.21.0) has bgp_ipv6_state and bgp_ipv6state
+    // (which both result in "bgpIpv6State" when camel-cased, with the second one being deprecated: true)
+    // As we currently don't handle any deprecated ones at all, we'll just delete one of the two attributes for now
+    attributes = attributes.filter((attr, idx) => {
+      const hasOtherWithSameName = attributes
+        .slice(idx + 1) // only search after the index of the current attribute to avoid deleting both
+        .some((other) => other.name === attr.name && other !== attr);
+      return !hasOtherWithSameName;
+    });
+
     const resourceModel = new ResourceModel({
       terraformType: type,
       baseName,