diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 50cf4bf..7ca0608 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -10,7 +10,7 @@ on:  # yamllint disable-line rule:truthy
     types:
       - "checks_requested"
 env:
-  GO_VERSION: "~1.20.4"
+  GO_VERSION: "~1.20.5"
 jobs:
   test:
     name: "Run Integration Tests"
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index a4e6480..6692538 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -10,6 +10,8 @@ on:  # yamllint disable-line rule:truthy
   merge_group:
     types:
       - "checks_requested"
+env:
+  GO_VERSION: "~1.20.5"
 jobs:
   go-lint:
     name: "Lint Go"
@@ -78,4 +80,4 @@ jobs:
       - name: "Upload Trivy scan results to GitHub Security tab"
         uses: "github/codeql-action/upload-sarif@v2"
         with:
-          sarif_file: 'trivy-results.sarif'
+          sarif_file: "trivy-results.sarif"
diff --git a/magefiles/buf.gen.yaml b/magefiles/buf.gen.yaml
index e17051f..29b76cb 100755
--- a/magefiles/buf.gen.yaml
+++ b/magefiles/buf.gen.yaml
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S go run github.com/bufbuild/buf/cmd/buf generate buf.build/authzed/api:15dad37df4a6aa52f08da1d10874214ca6c815ef --template
+#!/usr/bin/env -S go run github.com/bufbuild/buf/cmd/buf generate buf.build/authzed/api:ae69f452ff582006fc08a9743f87d38373ed65f5 --template
 ---
 version: "v1"
 plugins:
diff --git a/proto/authzed/api/v1/error_reason.pb.go b/proto/authzed/api/v1/error_reason.pb.go
index ac6a3d0..2a27096 100644
--- a/proto/authzed/api/v1/error_reason.pb.go
+++ b/proto/authzed/api/v1/error_reason.pb.go
@@ -252,6 +252,22 @@ const (
 	//	  }
 	//	}
 	ErrorReason_ERROR_REASON_MAX_RELATIONSHIP_CONTEXT_SIZE ErrorReason = 17
+	// The request failed because a relationship marked to be CREATEd
+	// was already present within the datastore.
+	//
+	// Example of an ErrorInfo:
+	//
+	//	{
+	//	  "reason": "ERROR_REASON_ATTEMPT_TO_RECREATE_RELATIONSHIP",
+	//	  "domain": "authzed.com",
+	//	  "metadata": {
+	//	    "relationship":          "relationship_that_already_existed",
+	//	    "resource_type":         "resource type",
+	//	    "resource_object_id":    "resource object id",
+	//	    ... additional decomposed relationship fields ...
+	//	  }
+	//	}
+	ErrorReason_ERROR_REASON_ATTEMPT_TO_RECREATE_RELATIONSHIP ErrorReason = 18
 )
 
 // Enum value maps for ErrorReason.
@@ -275,6 +291,7 @@ var (
 		15: "ERROR_REASON_INVALID_CURSOR",
 		16: "ERROR_REASON_TOO_MANY_RELATIONSHIPS_FOR_TRANSACTIONAL_DELETE",
 		17: "ERROR_REASON_MAX_RELATIONSHIP_CONTEXT_SIZE",
+		18: "ERROR_REASON_ATTEMPT_TO_RECREATE_RELATIONSHIP",
 	}
 	ErrorReason_value = map[string]int32{
 		"ERROR_REASON_UNSPECIFIED":                                     0,
@@ -295,6 +312,7 @@ var (
 		"ERROR_REASON_INVALID_CURSOR":                                  15,
 		"ERROR_REASON_TOO_MANY_RELATIONSHIPS_FOR_TRANSACTIONAL_DELETE": 16,
 		"ERROR_REASON_MAX_RELATIONSHIP_CONTEXT_SIZE":                   17,
+		"ERROR_REASON_ATTEMPT_TO_RECREATE_RELATIONSHIP":                18,
 	}
 )
 
@@ -331,7 +349,7 @@ var file_authzed_api_v1_error_reason_proto_rawDesc = []byte{
 	0x0a, 0x21, 0x61, 0x75, 0x74, 0x68, 0x7a, 0x65, 0x64, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x76, 0x31,
 	0x2f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x5f, 0x72, 0x65, 0x61, 0x73, 0x6f, 0x6e, 0x2e, 0x70, 0x72,
 	0x6f, 0x74, 0x6f, 0x12, 0x0e, 0x61, 0x75, 0x74, 0x68, 0x7a, 0x65, 0x64, 0x2e, 0x61, 0x70, 0x69,
-	0x2e, 0x76, 0x31, 0x2a, 0x94, 0x06, 0x0a, 0x0b, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x65, 0x61,
+	0x2e, 0x76, 0x31, 0x2a, 0xc7, 0x06, 0x0a, 0x0b, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x65, 0x61,
 	0x73, 0x6f, 0x6e, 0x12, 0x1c, 0x0a, 0x18, 0x45, 0x52, 0x52, 0x4f, 0x52, 0x5f, 0x52, 0x45, 0x41,
 	0x53, 0x4f, 0x4e, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10,
 	0x00, 0x12, 0x23, 0x0a, 0x1f, 0x45, 0x52, 0x52, 0x4f, 0x52, 0x5f, 0x52, 0x45, 0x41, 0x53, 0x4f,
@@ -380,12 +398,15 @@ var file_authzed_api_v1_error_reason_proto_rawDesc = []byte{
 	0x4c, 0x5f, 0x44, 0x45, 0x4c, 0x45, 0x54, 0x45, 0x10, 0x10, 0x12, 0x2e, 0x0a, 0x2a, 0x45, 0x52,
 	0x52, 0x4f, 0x52, 0x5f, 0x52, 0x45, 0x41, 0x53, 0x4f, 0x4e, 0x5f, 0x4d, 0x41, 0x58, 0x5f, 0x52,
 	0x45, 0x4c, 0x41, 0x54, 0x49, 0x4f, 0x4e, 0x53, 0x48, 0x49, 0x50, 0x5f, 0x43, 0x4f, 0x4e, 0x54,
-	0x45, 0x58, 0x54, 0x5f, 0x53, 0x49, 0x5a, 0x45, 0x10, 0x11, 0x42, 0x48, 0x0a, 0x12, 0x63, 0x6f,
-	0x6d, 0x2e, 0x61, 0x75, 0x74, 0x68, 0x7a, 0x65, 0x64, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x76, 0x31,
-	0x5a, 0x32, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x61, 0x75, 0x74,
-	0x68, 0x7a, 0x65, 0x64, 0x2f, 0x61, 0x75, 0x74, 0x68, 0x7a, 0x65, 0x64, 0x2d, 0x67, 0x6f, 0x2f,
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-	0x69, 0x2f, 0x76, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x45, 0x58, 0x54, 0x5f, 0x53, 0x49, 0x5a, 0x45, 0x10, 0x11, 0x12, 0x31, 0x0a, 0x2d, 0x45, 0x52,
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 }
 
 var (