diff --git a/el7/Dockerfile b/el7/Dockerfile
index d5922ba..196ceba 100644
--- a/el7/Dockerfile
+++ b/el7/Dockerfile
@@ -40,6 +40,10 @@ RUN yum groupinstall -y "Development Tools" && \
 
 ADD install-openssl11.sh get-git.sh get-automake.sh get-cmake.sh /
 
+COPY el9/get-protoc.sh /get-protoc.sh
+
+RUN /get-protoc.sh
+
 WORKDIR /
 
 # We need git >= 2.18 otherwise actions/checkout@v3 in github
diff --git a/el7/get-protoc.sh b/el7/get-protoc.sh
new file mode 100755
index 0000000..ad7fe25
--- /dev/null
+++ b/el7/get-protoc.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cd /tmp
+
+PB_REL="https://github.com/protocolbuffers/protobuf/releases"
+VSN="33.1"
+
+case $(uname -m) in
+  x86_64)
+    ARCH="x86_64"
+    ;;
+  *)
+    ARCH="aarch_64"
+    ;;
+esac
+
+curl -LO "$PB_REL/download/v$VSN/protoc-$VSN-linux-$ARCH.zip"
+# zip contains `bin/protoc`
+unzip "protoc-$VSN-linux-$ARCH.zip" -d /usr/local/
diff --git a/el9/get-protoc.sh b/el9/get-protoc.sh
index 4181b80..ad7fe25 100755
--- a/el9/get-protoc.sh
+++ b/el9/get-protoc.sh
@@ -17,4 +17,5 @@ case $(uname -m) in
 esac
 
 curl -LO "$PB_REL/download/v$VSN/protoc-$VSN-linux-$ARCH.zip"
-unzip "protoc-$VSN-linux-$ARCH.zip" -d /usr/local/bin
+# zip contains `bin/protoc`
+unzip "protoc-$VSN-linux-$ARCH.zip" -d /usr/local/