diff --git a/tfjs-converter/src/operations/executors/arithmetic_executor.ts b/tfjs-converter/src/operations/executors/arithmetic_executor.ts
index 2e492f47f84..0afafca5096 100644
--- a/tfjs-converter/src/operations/executors/arithmetic_executor.ts
+++ b/tfjs-converter/src/operations/executors/arithmetic_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/basic_math_executor.ts b/tfjs-converter/src/operations/executors/basic_math_executor.ts
index 52d92a6a1a7..89939037e67 100644
--- a/tfjs-converter/src/operations/executors/basic_math_executor.ts
+++ b/tfjs-converter/src/operations/executors/basic_math_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue, getTensor} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/convolution_executor.ts b/tfjs-converter/src/operations/executors/convolution_executor.ts
index a4f201a52c8..5910ea6fb30 100644
--- a/tfjs-converter/src/operations/executors/convolution_executor.ts
+++ b/tfjs-converter/src/operations/executors/convolution_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor =
+export const executeOp: InternalOpExecutor =
     (node: Node, tensorMap: NamedTensorsMap,
      context: ExecutionContext): tfc.Tensor[] => {
       switch (node.op) {
diff --git a/tfjs-converter/src/operations/executors/creation_executor.ts b/tfjs-converter/src/operations/executors/creation_executor.ts
index 11a817006a6..6b3359e84bd 100644
--- a/tfjs-converter/src/operations/executors/creation_executor.ts
+++ b/tfjs-converter/src/operations/executors/creation_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/evaluation_executor.ts b/tfjs-converter/src/operations/executors/evaluation_executor.ts
index f5d2c2beaed..c2551ca3e33 100644
--- a/tfjs-converter/src/operations/executors/evaluation_executor.ts
+++ b/tfjs-converter/src/operations/executors/evaluation_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor =
+export const executeOp: InternalOpExecutor =
     (node: Node, tensorMap: NamedTensorsMap,
      context: ExecutionContext): tfc.Tensor[] => {
       switch (node.op) {
diff --git a/tfjs-converter/src/operations/executors/graph_executor.ts b/tfjs-converter/src/operations/executors/graph_executor.ts
index cd333b2d779..c788577f89f 100644
--- a/tfjs-converter/src/operations/executors/graph_executor.ts
+++ b/tfjs-converter/src/operations/executors/graph_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue, getTensor} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/image_executor.ts b/tfjs-converter/src/operations/executors/image_executor.ts
index 38459823b59..1607de79146 100644
--- a/tfjs-converter/src/operations/executors/image_executor.ts
+++ b/tfjs-converter/src/operations/executors/image_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/logical_executor.ts b/tfjs-converter/src/operations/executors/logical_executor.ts
index e783443bc2d..d56321373cb 100644
--- a/tfjs-converter/src/operations/executors/logical_executor.ts
+++ b/tfjs-converter/src/operations/executors/logical_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/matrices_executor.ts b/tfjs-converter/src/operations/executors/matrices_executor.ts
index ba8289a0684..86923607d36 100644
--- a/tfjs-converter/src/operations/executors/matrices_executor.ts
+++ b/tfjs-converter/src/operations/executors/matrices_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/normalization_executor.ts b/tfjs-converter/src/operations/executors/normalization_executor.ts
index 16781ee4f9b..211cdf990ce 100644
--- a/tfjs-converter/src/operations/executors/normalization_executor.ts
+++ b/tfjs-converter/src/operations/executors/normalization_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/reduction_executor.ts b/tfjs-converter/src/operations/executors/reduction_executor.ts
index 6e2b6304bfb..945b09f46c1 100644
--- a/tfjs-converter/src/operations/executors/reduction_executor.ts
+++ b/tfjs-converter/src/operations/executors/reduction_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/slice_join_executor.ts b/tfjs-converter/src/operations/executors/slice_join_executor.ts
index 9812c4fd7cd..6187d1d9326 100644
--- a/tfjs-converter/src/operations/executors/slice_join_executor.ts
+++ b/tfjs-converter/src/operations/executors/slice_join_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {
diff --git a/tfjs-converter/src/operations/executors/spectral_executor.ts b/tfjs-converter/src/operations/executors/spectral_executor.ts
index 705f7210bbf..b665774f67a 100644
--- a/tfjs-converter/src/operations/executors/spectral_executor.ts
+++ b/tfjs-converter/src/operations/executors/spectral_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue} from './utils';
 
-export let executeOp: InternalOpExecutor =
+export const executeOp: InternalOpExecutor =
     (node: Node, tensorMap: NamedTensorsMap,
      context: ExecutionContext): tfc.Tensor[] => {
       switch (node.op) {
diff --git a/tfjs-converter/src/operations/executors/transformation_executor.ts b/tfjs-converter/src/operations/executors/transformation_executor.ts
index bc9f9708b95..62fba5759d8 100644
--- a/tfjs-converter/src/operations/executors/transformation_executor.ts
+++ b/tfjs-converter/src/operations/executors/transformation_executor.ts
@@ -23,7 +23,7 @@ import {InternalOpExecutor, Node} from '../types';
 
 import {getParamValue, split} from './utils';
 
-export let executeOp: InternalOpExecutor = (node: Node,
+export const executeOp: InternalOpExecutor = (node: Node,
                                             tensorMap: NamedTensorsMap,
                                             context: ExecutionContext):
                                                tfc.Tensor[] => {