diff --git a/tests/test_dequantize.cpp b/tests/test_dequantize.cpp
index ca05059fa45..7bf8287f721 100644
--- a/tests/test_dequantize.cpp
+++ b/tests/test_dequantize.cpp
@@ -35,27 +35,6 @@ static int test_dequantize(const ncnn::Mat& a, int scale_data_size, int bias_dat
     return ret;
 }
 
-static int test_dequantize_pack8(const ncnn::Mat& a, int scale_data_size, int bias_data_size)
-{
-    ncnn::ParamDict pd;
-    pd.set(0, scale_data_size);
-    pd.set(1, bias_data_size);
-
-    std::vector<ncnn::Mat> weights(bias_data_size ? 2 : 1);
-    weights[0] = RandomMat(scale_data_size);
-    if (bias_data_size)
-        weights[1] = RandomMat(bias_data_size);
-
-    int flag = TEST_LAYER_DISABLE_AUTO_INPUT_CASTING | TEST_LAYER_ENABLE_FORCE_INPUT_PACK8;
-    int ret = test_layer("Dequantize", pd, weights, a, 0.001, 0, flag);
-    if (ret != 0)
-    {
-        fprintf(stderr, "test_dequantize_pack8 failed a.dims=%d a=(%d %d %d) scale_data_size=%d bias_data_size=%d\n", a.dims, a.w, a.h, a.c, scale_data_size, bias_data_size);
-    }
-
-    return ret;
-}
-
 static int test_dequantize_0()
 {
     return 0
@@ -125,29 +104,6 @@ static int test_dequantize_2()
            || test_dequantize(RandomIntMat(127), 127, 0);
 }
 
-static int test_dequantize_3()
-{
-    return 0
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 1, 24)
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 1, 1)
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 1, 0)
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 24, 24)
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 24, 1)
-           || test_dequantize_pack8(RandomIntMat(5, 7, 24), 24, 0)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 1, 24)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 1, 1)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 1, 0)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 24, 24)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 24, 1)
-           || test_dequantize_pack8(RandomIntMat(15, 24), 24, 0)
-           || test_dequantize_pack8(RandomIntMat(128), 1, 128)
-           || test_dequantize_pack8(RandomIntMat(128), 1, 1)
-           || test_dequantize_pack8(RandomIntMat(128), 1, 0)
-           || test_dequantize_pack8(RandomIntMat(128), 128, 128)
-           || test_dequantize_pack8(RandomIntMat(128), 128, 1)
-           || test_dequantize_pack8(RandomIntMat(128), 128, 0);
-}
-
 int main()
 {
     SRAND(7767517);
@@ -155,6 +111,5 @@ int main()
     return 0
            || test_dequantize_0()
            || test_dequantize_1()
-           || test_dequantize_2()
-           || test_dequantize_3();
+           || test_dequantize_2();
 }