diff --git a/manylinux2014-aarch64/Dockerfile.in b/manylinux2014-aarch64/Dockerfile.in
index cc0a76a..a404817 100644
--- a/manylinux2014-aarch64/Dockerfile.in
+++ b/manylinux2014-aarch64/Dockerfile.in
@@ -10,7 +10,7 @@ FROM dockcross/manylinux2014-x64
 
 # The cross-compiling emulator
 RUN \
-  yum update && \
+  yum -y update && \
   yum -y install \
     qemu-user \
     qemu-system-arm && \
diff --git a/manylinux2014-aarch64/crosstool-ng.config b/manylinux2014-aarch64/crosstool-ng.config
index fd81ef6..537ad9a 100644
--- a/manylinux2014-aarch64/crosstool-ng.config
+++ b/manylinux2014-aarch64/crosstool-ng.config
@@ -302,7 +302,7 @@ CT_BINUTILS_EXTRA_CONFIG_ARRAY=""
 # C-library
 #
 CT_LIBC="glibc"
-CT_LIBC_VERSION="2.25"
+CT_LIBC_VERSION="2.17"
 CT_LIBC_glibc=y
 # CT_LIBC_uClibc is not set
 CT_LIBC_avr_libc_AVAILABLE=y
@@ -312,8 +312,8 @@ CT_CC_GLIBC_SHOW_LINARO=y
 # CT_LIBC_GLIBC_V_2_25 is not set
 # CT_LIBC_GLIBC_V_2_24 is not set
 # CT_LIBC_GLIBC_V_2_23 is not set
-CT_LIBC_GLIBC_2_23_or_later=y
-CT_LIBC_GLIBC_2_20_or_later=y
+# CT_LIBC_GLIBC_2_23_or_later=y
+# CT_LIBC_GLIBC_2_20_or_later=y
 CT_LIBC_GLIBC_2_17_or_later=y
 CT_LIBC_mingw_AVAILABLE=y
 CT_LIBC_musl_AVAILABLE=y
@@ -341,7 +341,7 @@ CT_LIBC_GLIBC_EXTRA_CFLAGS=""
 # CT_LIBC_DISABLE_VERSIONING is not set
 CT_LIBC_OLDEST_ABI=""
 CT_LIBC_GLIBC_FORCE_UNWIND=y
-CT_LIBC_ADDONS_LIST=""
+CT_LIBC_ADDONS_LIST="ports"
 # CT_LIBC_LOCALES is not set
 # CT_LIBC_GLIBC_KERNEL_VERSION_NONE is not set
 CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS=y
@@ -356,13 +356,13 @@ CT_CC_CORE_PASSES_NEEDED=y
 CT_CC_CORE_PASS_1_NEEDED=y
 CT_CC_CORE_PASS_2_NEEDED=y
 CT_CC_gcc=y
-CT_CC_GCC_VERSION="4.9.4"
+CT_CC_GCC_VERSION="4.8.5"
 # CT_CC_GCC_SHOW_LINARO is not set
-CT_CC_GCC_V_4_9_4=y
+CT_CC_GCC_V_4_8_5=y
 # CT_CC_GCC_V_5_4_0 is not set
 # CT_CC_GCC_V_4_9_4 is not set
 CT_CC_GCC_4_8_or_later=y
-CT_CC_GCC_4_9_or_later=y
+# CT_CC_GCC_4_9_or_later=y
 CT_CC_GCC_4_or_later=y
 CT_CC_GCC_4=y
 # CT_CC_GCC_6_or_later=y
@@ -488,14 +488,14 @@ CT_GMP_5_0_2_or_later=y
 CT_GMP_VERSION="6.1.2"
 CT_MPFR_V_3_1_5=y
 CT_MPFR_VERSION="3.1.5"
-CT_ISL_V_0_15=y
-CT_ISL_V_0_15_or_later=y
-CT_ISL_V_0_14_or_later=y
-CT_ISL_V_0_12_or_later=y
-CT_ISL_VERSION="0.15"
-CT_CLOOG_V_0_18_4=y
-CT_CLOOG_VERSION="0.18.4"
-CT_CLOOG_0_18_4_or_later=y
+CT_ISL_V_0_11_1=y
+# CT_ISL_V_0_15_or_later=y
+# CT_ISL_V_0_14_or_later=y
+CT_ISL_V_0_11_or_later=y
+CT_ISL_VERSION="0.11.1"
+CT_CLOOG_V_0_18_0=y
+CT_CLOOG_VERSION="0.18.0"
+# CT_CLOOG_0_18_4_or_later=y
 CT_CLOOG_0_18_or_later=y
 CT_MPC_V_1_0_3=y
 CT_MPC_VERSION="1.0.3"