diff --git a/elastic4s-core/src/test/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQueryBodyFnTest.scala b/elastic4s-core/src/test/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQueryBodyFnTest.scala
index 0dccbe6e1..9774ce6a5 100644
--- a/elastic4s-core/src/test/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQueryBodyFnTest.scala
+++ b/elastic4s-core/src/test/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQueryBodyFnTest.scala
@@ -25,7 +25,7 @@ class RankFeatureQueryBodyFnTest extends AnyFunSuite with Matchers with GivenWhe
       |      "field": "pagerank",
       |      "boost": 0.5,
       |      "sigmoid": {
-      |         "pivot": 7,
+      |         "pivot": 7.0,
       |         "exponent": 0.6
       |      }
       |   }
@@ -50,7 +50,7 @@ class RankFeatureQueryBodyFnTest extends AnyFunSuite with Matchers with GivenWhe
         |   "rank_feature":{
         |      "field": "pagerank",
         |      "log": {
-        |          "scaling_factor": 3
+        |          "scaling_factor": 3.0
         |      }
         |   }
         |}
@@ -75,7 +75,7 @@ class RankFeatureQueryBodyFnTest extends AnyFunSuite with Matchers with GivenWhe
         |   "rank_feature":{
         |      "field": "pagerank",
         |      "saturation": {
-        |          "pivot": 2
+        |          "pivot": 2.0
         |      }
         |   }
         |}
diff --git a/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQuery.scala b/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQuery.scala
index 5fd1988c3..ffbb184b1 100644
--- a/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQuery.scala
+++ b/elastic4s-domain/src/main/scala/com/sksamuel/elastic4s/requests/searches/queries/RankFeatureQuery.scala
@@ -26,8 +26,8 @@ case class RankFeatureQuery(field: String,
 }
 
 object RankFeatureQuery {
-  case class Saturation(pivot: Option[Int])
-  case class Log(scalingFactor: Int)
-  case class Sigmoid(pivot: Int, exponent: Double)
+  case class Saturation(pivot: Option[Float])
+  case class Log(scalingFactor: Float)
+  case class Sigmoid(pivot: Float, exponent: Double)
   case class Linear()
 }
diff --git a/elastic4s-tests/src/test/resources/json/search/search_rank_feature.json b/elastic4s-tests/src/test/resources/json/search/search_rank_feature.json
index a954b0300..2dce7156c 100644
--- a/elastic4s-tests/src/test/resources/json/search/search_rank_feature.json
+++ b/elastic4s-tests/src/test/resources/json/search/search_rank_feature.json
@@ -5,7 +5,7 @@
             "field": "pagerank",
             "boost": 0.5,
             "sigmoid": {
-                "pivot": 7,
+                "pivot": 7.0,
                 "exponent": 0.6
             }
         }