diff --git a/packages/gatsby/src/schema/data-tree-utils.js b/packages/gatsby/src/schema/data-tree-utils.js
index 5e53167da2668..d53a33be41384 100644
--- a/packages/gatsby/src/schema/data-tree-utils.js
+++ b/packages/gatsby/src/schema/data-tree-utils.js
@@ -7,6 +7,7 @@ const invariant = require(`invariant`)
 const createKey = require(`./create-key`)
 const { typeConflictReporter } = require(`./type-conflict-reporter`)
 const DateType = require(`./types/type-date`)
+const is32BitInteger = require(`../utils/is-32-bit-integer`)
 
 import type { TypeEntry } from "./type-conflict-reporter"
 
@@ -118,7 +119,7 @@ const getExampleScalarFromArray = values =>
     values,
     (value, nextValue) => {
       // Prefer floats over ints as they're more specific.
-      if (nextValue && _.isNumber(nextValue) && !_.isInteger(nextValue)) {
+      if (nextValue && _.isNumber(nextValue) && !is32BitInteger(nextValue)) {
         return nextValue
       } else if (value === null) {
         return nextValue
diff --git a/packages/gatsby/src/schema/infer-graphql-input-fields.js b/packages/gatsby/src/schema/infer-graphql-input-fields.js
index 14824128ab453..7ce564b0a1513 100644
--- a/packages/gatsby/src/schema/infer-graphql-input-fields.js
+++ b/packages/gatsby/src/schema/infer-graphql-input-fields.js
@@ -21,6 +21,7 @@ const {
 
 const { findLinkedNode } = require(`./infer-graphql-type`)
 const { getNodes } = require(`../redux`)
+const is32BitInteger = require(`../utils/is-32-bit-integer`)
 
 import type {
   GraphQLInputFieldConfig,
@@ -76,7 +77,7 @@ function inferGraphQLInputFields({
       let headType = typeOf(headValue)
 
       if (headType === `number`)
-        headType = _.isInteger(headValue) ? `int` : `float`
+        headType = is32BitInteger(headValue) ? `int` : `float`
 
       // Determine type for in operator.
       let inType
diff --git a/packages/gatsby/src/schema/infer-graphql-type.js b/packages/gatsby/src/schema/infer-graphql-type.js
index be2d510ff1c2f..7c4b856fd03ca 100644
--- a/packages/gatsby/src/schema/infer-graphql-type.js
+++ b/packages/gatsby/src/schema/infer-graphql-type.js
@@ -19,6 +19,7 @@ const createKey = require(`./create-key`)
 const { getExampleValues, isEmptyObjectOrArray } = require(`./data-tree-utils`)
 const DateType = require(`./types/type-date`)
 const FileType = require(`./types/type-file`)
+const is32BitInteger = require(`../utils/is-32-bit-integer`)
 
 import type { GraphQLOutputType } from "graphql"
 import type {
@@ -117,7 +118,7 @@ function inferGraphQLType({
         }),
       }
     case `number`:
-      return _.isInteger(exampleValue)
+      return is32BitInteger(exampleValue)
         ? { type: GraphQLInt }
         : { type: GraphQLFloat }
     default:
diff --git a/packages/gatsby/src/utils/is-32-bit-integer.js b/packages/gatsby/src/utils/is-32-bit-integer.js
new file mode 100644
index 0000000000000..79571106bcf23
--- /dev/null
+++ b/packages/gatsby/src/utils/is-32-bit-integer.js
@@ -0,0 +1,3 @@
+module.exports = function(x) {
+    return (x | 0) === x
+}
\ No newline at end of file