diff --git a/12.0-rc/fpm-alpine/Dockerfile b/12.0-rc/fpm-alpine/Dockerfile
index a0edea2..7afbe7d 100644
--- a/12.0-rc/fpm-alpine/Dockerfile
+++ b/12.0-rc/fpm-alpine/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
 RUN set -ex; \
     \
     apk add --no-cache --virtual .build-deps \
-        alpine-sdk \
+        $PHPIZE_DEPS \
         autoconf \
         freetype-dev \
         icu-dev \
diff --git a/12.0/fpm-alpine/Dockerfile b/12.0/fpm-alpine/Dockerfile
index c75b336..ca9add2 100644
--- a/12.0/fpm-alpine/Dockerfile
+++ b/12.0/fpm-alpine/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
 RUN set -ex; \
     \
     apk add --no-cache --virtual .build-deps \
-        alpine-sdk \
+        $PHPIZE_DEPS \
         autoconf \
         freetype-dev \
         icu-dev \
diff --git a/13.0-rc/fpm-alpine/Dockerfile b/13.0-rc/fpm-alpine/Dockerfile
index 0726284..19a3da6 100644
--- a/13.0-rc/fpm-alpine/Dockerfile
+++ b/13.0-rc/fpm-alpine/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
 RUN set -ex; \
     \
     apk add --no-cache --virtual .build-deps \
-        alpine-sdk \
+        $PHPIZE_DEPS \
         autoconf \
         freetype-dev \
         icu-dev \
diff --git a/13.0/fpm-alpine/Dockerfile b/13.0/fpm-alpine/Dockerfile
index 2b75327..40353eb 100644
--- a/13.0/fpm-alpine/Dockerfile
+++ b/13.0/fpm-alpine/Dockerfile
@@ -16,7 +16,7 @@ RUN set -ex; \
 RUN set -ex; \
     \
     apk add --no-cache --virtual .build-deps \
-        alpine-sdk \
+        $PHPIZE_DEPS \
         autoconf \
         freetype-dev \
         icu-dev \
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 05cfc01..b1d988f 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -15,7 +15,7 @@ RUN set -ex; \
 RUN set -ex; \
     \
     apk add --no-cache --virtual .build-deps \
-        alpine-sdk \
+        $PHPIZE_DEPS \
         autoconf \
         freetype-dev \
         icu-dev \