diff --git a/service-template/{{project-name}}-proto/build.rs b/service-template/{{project-name}}-proto/build.rs
index e25714474..d5c012d22 100644
--- a/service-template/{{project-name}}-proto/build.rs
+++ b/service-template/{{project-name}}-proto/build.rs
@@ -14,10 +14,10 @@ fn compile(
         .compile_well_known_types()
         .protoc_arg("--openapiv2_out=swagger/v1")
         .protoc_arg("--openapiv2_opt")
-        .protoc_arg("grpc_api_configuration=proto/v1/api_config_http.yaml,output_format=yaml,allow_merge=true,merge_file_name={{project-name}}")
+        .protoc_arg("grpc_api_configuration=proto/v1/api_config_http.yaml,output_format=yaml,allow_merge=true,merge_file_name={{project-name}},json_names_for_fields=false")
         .bytes(["."])
         .btree_map(["."])
-        .type_attribute(".", "#[actix_prost_macros::serde]")
+        .type_attribute(".", "#[actix_prost_macros::serde(rename_all=\"snake_case\")]")
         // .field_attribute(
         //     ".blockscout.{{projectName}}.v1.<MessageName>.<DefaultFieldName>",
         //     "#[serde(default)]"
diff --git a/stats/stats-proto/build.rs b/stats/stats-proto/build.rs
index f91a660ca..a5d718363 100644
--- a/stats/stats-proto/build.rs
+++ b/stats/stats-proto/build.rs
@@ -14,9 +14,9 @@ fn compile(
         .compile_well_known_types()
         .protoc_arg("--openapiv2_out=swagger")
         .protoc_arg("--openapiv2_opt")
-        .protoc_arg("grpc_api_configuration=proto/api_config_http.yaml,output_format=yaml,allow_merge=true,merge_file_name=stats")
+        .protoc_arg("grpc_api_configuration=proto/api_config_http.yaml,output_format=yaml,allow_merge=true,merge_file_name=stats,json_names_for_fields=false")
         .bytes(["."])
-        .type_attribute(".", "#[actix_prost_macros::serde]")
+        .type_attribute(".", "#[actix_prost_macros::serde(rename_all=\"snake_case\")]")
         .field_attribute(
             ".blockscout.stats.v1.HealthCheckRequest.service",
             "#[serde(default)]"
diff --git a/stats/stats-proto/src/tests.rs b/stats/stats-proto/src/tests.rs
index e65463e30..1295ded44 100644
--- a/stats/stats-proto/src/tests.rs
+++ b/stats/stats-proto/src/tests.rs
@@ -6,7 +6,7 @@ const PRECISE_POINT_1: &str = r#"
 {
     "date": "2024-03-14",
     "value": "188542399",
-    "isApproximate": false
+    "is_approximate": false
 }
 "#;
 
@@ -17,6 +17,14 @@ const PRECISE_POINT_2: &str = r#"
 }
 "#;
 
+const IMPRECISE_POINT: &str = r#"
+{
+    "date": "2024-03-14",
+    "value": "188542399",
+    "is_approximate": true
+}
+"#;
+
 #[test]
 fn is_approximate_serialization() {
     // deserialize
@@ -24,6 +32,8 @@ fn is_approximate_serialization() {
     assert!(!point.is_approximate);
     let point: proto::Point = serde_json::from_str(PRECISE_POINT_2).unwrap();
     assert!(!point.is_approximate);
+    let point: proto::Point = serde_json::from_str(IMPRECISE_POINT).unwrap();
+    assert!(point.is_approximate);
 
     // serialize
     let point = proto::Point {
@@ -36,4 +46,14 @@ fn is_approximate_serialization() {
         serialized_point.replace([' ', '\n'], ""),
         PRECISE_POINT_2.replace([' ', '\n'], "")
     );
+    let point = proto::Point {
+        date: "2024-03-14".to_owned(),
+        value: "188542399".to_owned(),
+        is_approximate: true,
+    };
+    let serialized_point = serde_json::to_string(&point).unwrap();
+    assert_eq!(
+        serialized_point.replace([' ', '\n'], ""),
+        IMPRECISE_POINT.replace([' ', '\n'], "")
+    );
 }
diff --git a/stats/stats-proto/swagger/stats.swagger.yaml b/stats/stats-proto/swagger/stats.swagger.yaml
index 6398e9a32..bb0359eb4 100644
--- a/stats/stats-proto/swagger/stats.swagger.yaml
+++ b/stats/stats-proto/swagger/stats.swagger.yaml
@@ -190,6 +190,6 @@ definitions:
         type: string
       value:
         type: string
-      isApproximate:
+      is_approximate:
         type: boolean
     title: All integers are encoded as strings to prevent data loss