diff --git a/x-pack/solutions/observability/plugins/apm/server/routes/environments/get_environments.ts b/x-pack/solutions/observability/plugins/apm/server/routes/environments/get_environments.ts
index 816be5a8652f1..30cd900f08897 100644
--- a/x-pack/solutions/observability/plugins/apm/server/routes/environments/get_environments.ts
+++ b/x-pack/solutions/observability/plugins/apm/server/routes/environments/get_environments.ts
@@ -54,6 +54,7 @@ export async function getEnvironments({
         terms: {
           field: SERVICE_ENVIRONMENT,
           missing: ENVIRONMENT_NOT_DEFINED.value,
+          order: { _key: 'asc' as const },
           size,
         },
       },
diff --git a/x-pack/solutions/observability/plugins/apm/server/routes/suggestions/get_suggestions_with_terms_aggregation.ts b/x-pack/solutions/observability/plugins/apm/server/routes/suggestions/get_suggestions_with_terms_aggregation.ts
index cdf8296d37653..f9d36ca0f1f0c 100644
--- a/x-pack/solutions/observability/plugins/apm/server/routes/suggestions/get_suggestions_with_terms_aggregation.ts
+++ b/x-pack/solutions/observability/plugins/apm/server/routes/suggestions/get_suggestions_with_terms_aggregation.ts
@@ -51,7 +51,11 @@ export async function getSuggestionsWithTermsAggregation({
     },
     aggs: {
       items: {
-        terms: { field: fieldName, size },
+        terms: {
+          field: fieldName,
+          size,
+          order: { _key: 'asc' as const },
+        },
       },
     },
   });
diff --git a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/environment/get_environment.spec.ts b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/environment/get_environment.spec.ts
index ba6f0df98e3a1..bc3d95e42cadc 100644
--- a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/environment/get_environment.spec.ts
+++ b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/environment/get_environment.spec.ts
@@ -104,10 +104,10 @@ export default function environmentsAPITests({ getService }: DeploymentAgnosticF
         expect(body.environments.length).to.be.equal(4);
         expectSnapshot(body.environments).toMatchInline(`
             Array [
+              "custom-go-environment",
               "development",
               "production",
               "staging",
-              "custom-go-environment",
             ]
           `);
       });