diff --git a/lib/analyze-action.js b/lib/analyze-action.js
index b22097055..248b2547b 100644
--- a/lib/analyze-action.js
+++ b/lib/analyze-action.js
@@ -106511,7 +106511,10 @@ var CodeQuality = {
   transformPayload: (payload) => payload
 };
 function addAssessmentId(payload) {
-  const assessmentId = getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID");
+  const assessmentId = parseInt(
+    getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID"),
+    10
+  );
   return { ...payload, assessment_id: assessmentId };
 }
 var CSRA = {
diff --git a/lib/init-action-post.js b/lib/init-action-post.js
index 45b490f7f..7a2299e72 100644
--- a/lib/init-action-post.js
+++ b/lib/init-action-post.js
@@ -164570,7 +164570,10 @@ var CodeQuality = {
   transformPayload: (payload) => payload
 };
 function addAssessmentId(payload) {
-  const assessmentId = getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID");
+  const assessmentId = parseInt(
+    getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID"),
+    10
+  );
   return { ...payload, assessment_id: assessmentId };
 }
 var CSRA = {
diff --git a/lib/upload-lib.js b/lib/upload-lib.js
index 550606b15..9cd6a38fc 100644
--- a/lib/upload-lib.js
+++ b/lib/upload-lib.js
@@ -106166,7 +106166,10 @@ var CodeQuality = {
   transformPayload: (payload) => payload
 };
 function addAssessmentId(payload) {
-  const assessmentId = getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID");
+  const assessmentId = parseInt(
+    getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID"),
+    10
+  );
   return { ...payload, assessment_id: assessmentId };
 }
 var CSRA = {
diff --git a/lib/upload-sarif-action.js b/lib/upload-sarif-action.js
index b50d9322a..0a77cdfd0 100644
--- a/lib/upload-sarif-action.js
+++ b/lib/upload-sarif-action.js
@@ -106204,7 +106204,10 @@ var CodeQuality = {
   transformPayload: (payload) => payload
 };
 function addAssessmentId(payload) {
-  const assessmentId = getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID");
+  const assessmentId = parseInt(
+    getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID"),
+    10
+  );
   return { ...payload, assessment_id: assessmentId };
 }
 var CSRA = {
diff --git a/src/analyses.ts b/src/analyses.ts
index dd60c54ed..9f2b2bbf3 100644
--- a/src/analyses.ts
+++ b/src/analyses.ts
@@ -183,7 +183,10 @@ export const CodeQuality: AnalysisConfig = {
  * @param payload The base payload.
  */
 function addAssessmentId(payload: UploadPayload): AssessmentPayload {
-  const assessmentId = getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID");
+  const assessmentId = parseInt(
+    getRequiredEnvParam("CODEQL_ACTION_CSRA_ASSESSMENT_ID"),
+    10,
+  );
   return { ...payload, assessment_id: assessmentId };
 }
 
diff --git a/src/upload-lib/types.ts b/src/upload-lib/types.ts
index 8a6c27450..d04ed1c6b 100644
--- a/src/upload-lib/types.ts
+++ b/src/upload-lib/types.ts
@@ -15,5 +15,5 @@ export interface UploadPayload {
 }
 
 export interface AssessmentPayload extends UploadPayload {
-  assessment_id: string;
+  assessment_id: number;
 }