diff --git a/bin/wally-tool-chain-install.sh b/bin/wally-tool-chain-install.sh
index 9ffddf8bc..a4c111ac1 100755
--- a/bin/wally-tool-chain-install.sh
+++ b/bin/wally-tool-chain-install.sh
@@ -149,6 +149,7 @@ fi
 export PATH=$PATH:$RISCV/bin:/usr/bin
 export PKG_CONFIG_PATH=$RISCV/lib64/pkgconfig:$RISCV/lib/pkgconfig:$RISCV/share/pkgconfig:$RISCV/lib/x86_64-linux-gnu/pkgconfig:$PKG_CONFIG_PATH
 
+# wget retry on host error flag not available with older wget on RHEL 8
 if (( RHEL_VERSION != 8 )); then
     retry_on_host_error="--retry-on-host-error"
 fi
@@ -190,6 +191,11 @@ else
     source "${dir}"/wally-package-install.sh --check
 fi
 
+# Older version of git defaults to protocol version incompatible with riscv-gnu-toolchain
+if (( UBUNTU_VERSION == 20 )); then
+    git config --global protocol.version 2
+fi
+
 # Enable newer version of gcc for older distros (required for QEMU/Verilator)
 if [ "$FAMILY" == rhel ]; then
     source /opt/rh/gcc-toolset-13/enable