diff --git a/scripts/zig-rpc-server.sh b/scripts/zig-rpc-server.sh
index e411b20bb..ee96905bb 100755
--- a/scripts/zig-rpc-server.sh
+++ b/scripts/zig-rpc-server.sh
@@ -8,7 +8,7 @@ set -e
 unset RUSTFLAGS
 
 # Pin Rust version to avoid uncontrolled changes in the compiler and linker flags.
-export RUSTUP_TOOLCHAIN=1.68.1
+export RUSTUP_TOOLCHAIN=1.70.0
 
 ZIG_VERSION=0.11.0-dev.2213+515e1c93e