diff --git a/mediapipe/calculators/tensor/image_to_tensor_converter_gl_texture.cc b/mediapipe/calculators/tensor/image_to_tensor_converter_gl_texture.cc
index 465e7e0bc..5604aea8f 100644
--- a/mediapipe/calculators/tensor/image_to_tensor_converter_gl_texture.cc
+++ b/mediapipe/calculators/tensor/image_to_tensor_converter_gl_texture.cc
@@ -304,6 +304,7 @@ class GlProcessor : public ImageToTensorConverter {
     glBindTexture(GL_TEXTURE_2D, 0);
     glActiveTexture(GL_TEXTURE0);
     glBindTexture(GL_TEXTURE_2D, 0);
+    glFlush();
 
     return absl::OkStatus();
   }
diff --git a/mediapipe/calculators/tensor/tensor_converter_calculator.cc b/mediapipe/calculators/tensor/tensor_converter_calculator.cc
index f8268f3d2..e86436589 100644
--- a/mediapipe/calculators/tensor/tensor_converter_calculator.cc
+++ b/mediapipe/calculators/tensor/tensor_converter_calculator.cc
@@ -406,6 +406,7 @@ absl::Status TensorConverterCalculator::ProcessGPU(CalculatorContext* cc) {
         glActiveTexture(GL_TEXTURE1);
         glBindTexture(GL_TEXTURE_2D, 0);
 #endif  // MEDIAPIPE_OPENGL_ES_VERSION >= MEDIAPIPE_OPENGL_ES_31
+        glFlush();
         src.Release();
         return absl::OkStatus();
       }));