config BR2_DEFAULT_KERNEL_HEADERS
        string
        default "3.2.101"       if BR2_KERNEL_HEADERS_3_2
-       default "4.1.50"        if BR2_KERNEL_HEADERS_4_1
-       default "4.4.124"       if BR2_KERNEL_HEADERS_4_4
-       default "4.9.90"        if BR2_KERNEL_HEADERS_4_9
+       default "4.1.51"        if BR2_KERNEL_HEADERS_4_1
+       default "4.4.125"       if BR2_KERNEL_HEADERS_4_4
+       default "4.9.91"        if BR2_KERNEL_HEADERS_4_9
        default "4.10.17"       if BR2_KERNEL_HEADERS_4_10
        default "4.11.12"       if BR2_KERNEL_HEADERS_4_11
        default "4.12.14"       if BR2_KERNEL_HEADERS_4_12
        default "4.13.16"       if BR2_KERNEL_HEADERS_4_13
-       default "4.14.30"       if BR2_KERNEL_HEADERS_4_14
-       default "4.15.13"       if BR2_KERNEL_HEADERS_4_15
+       default "4.14.31"       if BR2_KERNEL_HEADERS_4_14
+       default "4.15.14"       if BR2_KERNEL_HEADERS_4_15
        default BR2_DEFAULT_KERNEL_VERSION if BR2_KERNEL_HEADERS_VERSION