diff --git a/data/supported-extensions b/data/supported-extensions
index 7b3610a..adfa27e 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -10,7 +10,7 @@ exif 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 gd 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 gettext 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 gmagick 5.6 7.0 7.1 7.2 7.3 7.4
-gmp 5.6 7.0 7.1 7.2 7.3 7.4
+gmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 grpc 5.6 7.0 7.1 7.2 7.3 7.4
 http 5.6 7.0 7.1 7.2 7.3 7.4
 igbinary 5.6 7.0 7.1 7.2 7.3 7.4
@@ -70,4 +70,4 @@ xdebug 5.6 7.0 7.1 7.2 7.3 7.4
 xmlrpc 5.6 7.0 7.1 7.2 7.3 7.4
 xsl 5.6 7.0 7.1 7.2 7.3 7.4
 yaml 5.6 7.0 7.1 7.2 7.3 7.4
-zip 5.6 7.0 7.1 7.2 7.3 7.4
+zip 5.5 5.6 7.0 7.1 7.2 7.3 7.4
diff --git a/install-php-extensions b/install-php-extensions
index 8fbb8a2..ea7f162 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -829,14 +829,12 @@ installBundledModule() {
 			fi
 			;;
 		gmp)
-			case "$1" in
-				506)
-					if ! test -f /usr/include/gmp.h; then
-						ln -s /usr/include/x86_64-linux-gnu/gmp.h /usr/include/gmp.h
-						UNNEEDED_PACKAGE_LINKS="$UNNEEDED_PACKAGE_LINKS /usr/include/gmp.h"
-					fi
-					;;
-			esac
+			if test $1 -le 506; then
+				if ! test -f /usr/include/gmp.h; then
+					ln -s /usr/include/x86_64-linux-gnu/gmp.h /usr/include/gmp.h
+					UNNEEDED_PACKAGE_LINKS="$UNNEEDED_PACKAGE_LINKS /usr/include/gmp.h"
+				fi
+			fi
 			;;
 		imap)
 			case "$(getDistroVersion)" in
@@ -923,7 +921,9 @@ installBundledModule() {
 			esac
 			;;
 		zip)
-			if test $1 -le 703; then
+			if test $1 -le 505; then
+				docker-php-ext-configure zip
+			elif test $1 -le 703; then
 				docker-php-ext-configure zip --with-libzip
 			else
 				docker-php-ext-configure zip --with-zip