diff --git a/projects/istio/Dockerfile b/projects/istio/Dockerfile
index e9ddcdd95..542203eef 100644
--- a/projects/istio/Dockerfile
+++ b/projects/istio/Dockerfile
@@ -17,5 +17,10 @@
 # Setup the builder for Istio. The standard Go builder is sufficient.
 FROM gcr.io/oss-fuzz-base/base-builder-go
 RUN git clone --depth 1 https://github.com/istio/istio
+RUN wget https://go.dev/dl/go1.20.2.linux-amd64.tar.gz \
+    && mkdir temp-go \
+    && rm -rf /root/.go/* \
+    && tar -C temp-go/ -xzf go1.20.2.linux-amd64.tar.gz \
+    && mv temp-go/go/* /root/.go/
 COPY build.sh $SRC/
 WORKDIR $SRC/istio
diff --git a/projects/istio/build.sh b/projects/istio/build.sh
index d6de5c586..d05a47ab3 100644
--- a/projects/istio/build.sh
+++ b/projects/istio/build.sh
@@ -15,6 +15,10 @@
 #
 ################################################################################
 
+# required by Go 1.20
+export CXX="${CXX} -lresolv"
+
+# Build fuzzers
 if [ -n "${OSS_FUZZ_CI-}" ]
 then
 	echo "Skipping most fuzzers since the OSS-fuzz CI may fail from running out of disk space."