diff --git a/data/special-requirements b/data/special-requirements
index 64f3ad0..784c314 100644
--- a/data/special-requirements
+++ b/data/special-requirements
@@ -3,6 +3,7 @@ memprof !alpine
 parallel zts
 pdo_sqlsrv !alpine3.7 !alpine3.8
 pthreads zts
+sodium !jessie
 sqlsrv !alpine3.7 !alpine3.8 !7.1-alpine3.9 !7.1-alpine3.10
 tensor !alpine3.15
 vips !alpine3.7 !alpine3.8 !alpine3.9 !jessie
diff --git a/data/supported-extensions b/data/supported-extensions
index dfe6ac0..542c637 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -85,6 +85,7 @@ snmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 snuffleupagus 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 soap 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
 sockets 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0 8.1
+sodium 5.6 7.0 7.1
 solr 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 sourceguardian 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 spx 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 87b28be..0e6b4c3 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -139,6 +139,16 @@ normalizePHPModuleName() {
 		zend\ opcache)
 			normalizePHPModuleName_name='opcache'
 			;;
+		libsodium)
+			if test $PHP_MAJMIN_VERSION -ge 700; then
+				normalizePHPModuleName_name='sodium'
+			fi
+			;;
+		sodium)
+			if test $PHP_MAJMIN_VERSION -lt 700; then
+				normalizePHPModuleName_name='libsodium'
+			fi
+			;;
 		*\ *)
 			printf '### WARNING Unrecognized module name: %s ###\n' "$1" >&2
 			;;
@@ -159,6 +169,9 @@ getPeclModuleName() {
 		http)
 			normalizePHPModuleName_name=pecl_http
 			;;
+		sodium)
+			normalizePHPModuleName_name=libsodium
+			;;
 	esac
 	printf '%s' "$normalizePHPModuleName_name"
 }
@@ -1081,6 +1094,14 @@ buildRequiredPackageLists() {
 			soap@debian)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libxml2-dev"
 				;;
+			sodium@alpine | libsodium@alpine)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libsodium"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libsodium-dev"
+				;;
+			sodium@debian | libsodium@debian)
+				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent ^libsodium[0-9]*$"
+				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libsodium-dev"
+				;;
 			solr@alpine)
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile curl-dev libxml2-dev"
 				;;
@@ -2893,6 +2914,13 @@ installRemoteModule() {
 			installRemoteModule_ini_extra="$(printf '%ssp.configuration_file=%s\n' "$installRemoteModule_ini_extra" "$PHP_INI_DIR/conf.d/snuffleupagus.rules")"
 			installRemoteModule_manuallyInstalled=1
 			;;
+		sodium | libsodium)
+			if test -z "$installRemoteModule_version"; then
+				if test $PHP_MAJMIN_VERSION -lt 700; then
+					installRemoteModule_version=1.0.7
+				fi
+			fi
+			;;
 		solr)
 			if test -z "$installRemoteModule_version"; then
 				if test $PHP_MAJMIN_VERSION -le 506; then
diff --git a/scripts/check-installed-extension.php b/scripts/check-installed-extension.php
index 7c8c73d..d0604d7 100644
--- a/scripts/check-installed-extension.php
+++ b/scripts/check-installed-extension.php
@@ -7,6 +7,11 @@ $nameMap = [
     'apcu_bc' => 'apc',
     'ioncube_loader' => 'ionCube Loader',
 ];
+if (PHP_VERSION_ID < 70000) {
+    $nameMap['sodium'] = 'libsodium';
+} else {
+    $nameMap['libsodium'] = 'sodium';
+}
 $testsDir = __DIR__ . '/tests';
 function runTest($testFile)
 {