diff --git a/data/supported-extensions b/data/supported-extensions
index 7eb8d66..cd10a14 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -34,6 +34,7 @@ imap 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 inotify 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 interbase 5.5 5.6 7.0 7.1 7.2 7.3
 intl 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
+ion 8.1
 ioncube_loader 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 jsmin 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 json_post 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
diff --git a/install-php-extensions b/install-php-extensions
index f75a9cd..4b5344e 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -864,6 +864,12 @@ buildRequiredPackageLists() {
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent ^libicu[0-9]+$"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libicu-dev"
 				;;
+			ion@alpine)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake git"
+				;;
+			ion@debian)
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile cmake git"
+				;;
 			ldap@alpine)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libldap"
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile openldap-dev"
@@ -2613,6 +2619,25 @@ installRemoteModule() {
 				fi
 			fi
 			;;
+		ion)
+			if ! test -f /usr/local/lib/libionc.so || ! test -f /usr/local/include/ionc/ion.h; then
+				echo 'Installing ion-c... '
+				installRemoteModule_src="$(mktemp -p /tmp/src -d)"
+				git clone -q -c advice.detachedHead=false --depth 1 --branch v1.0.6 https://github.com/amzn/ion-c.git "$installRemoteModule_src/ion"
+				(
+					cd "$installRemoteModule_src/ion"
+					git submodule init -q
+					git submodule update -q
+					mkdir -p build
+					cd build
+					cmake -DCMAKE_BUILD_TYPE=Release .. -Wno-dev
+					make clean
+					make -j$(getProcessorCount) install
+				)
+				rm -rf "$installRemoteModule_src"
+			fi
+			addConfigureOption with-ion "shared,/usr/local"
+			;;
 		ioncube_loader)
 			installIonCubeLoader
 			installRemoteModule_manuallyInstalled=1
diff --git a/scripts/tests/ion b/scripts/tests/ion
new file mode 100755
index 0000000..d285aa9
--- /dev/null
+++ b/scripts/tests/ion
@@ -0,0 +1,12 @@
+#!/usr/bin/env php
+<?php
+
+$serialized = ion\serialize(ion\Symbol\PHP::asTable());
+$unserialized = ion\unserialize($serialized);
+if (!$unserialized instanceof ion\Symbol\Table) {
+    fwrite(STDERR, "ion doesn't seem to be working\n");
+    exit(1);
+}
+echo "ion is working.\n";
+
+return 0;