diff --git a/21/apache/Dockerfile b/21/apache/Dockerfile
index a45fe808..434b10e0 100644
--- a/21/apache/Dockerfile
+++ b/21/apache/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/21/fpm-alpine/Dockerfile b/21/fpm-alpine/Dockerfile
index 7a6a271b..46d30d5d 100644
--- a/21/fpm-alpine/Dockerfile
+++ b/21/fpm-alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/21/fpm/Dockerfile b/21/fpm/Dockerfile
index b04c64e8..a13db83b 100644
--- a/21/fpm/Dockerfile
+++ b/21/fpm/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/22/apache/Dockerfile b/22/apache/Dockerfile
index ec58dcde..4bff8c8c 100644
--- a/22/apache/Dockerfile
+++ b/22/apache/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/22/fpm-alpine/Dockerfile b/22/fpm-alpine/Dockerfile
index fad5e4dd..77741043 100644
--- a/22/fpm-alpine/Dockerfile
+++ b/22/fpm-alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/22/fpm/Dockerfile b/22/fpm/Dockerfile
index b11ab8d0..928eaa22 100644
--- a/22/fpm/Dockerfile
+++ b/22/fpm/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/23/apache/Dockerfile b/23/apache/Dockerfile
index 60f27b32..380b5ad4 100644
--- a/23/apache/Dockerfile
+++ b/23/apache/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/23/fpm-alpine/Dockerfile b/23/fpm-alpine/Dockerfile
index 388c3bed..9e5d93ae 100644
--- a/23/fpm-alpine/Dockerfile
+++ b/23/fpm-alpine/Dockerfile
@@ -53,7 +53,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \
diff --git a/23/fpm/Dockerfile b/23/fpm/Dockerfile
index 0292e5ac..2f53d7c7 100644
--- a/23/fpm/Dockerfile
+++ b/23/fpm/Dockerfile
@@ -62,7 +62,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.21; \
-    pecl install memcached-3.1.5; \
+    pecl install memcached-3.2.0RC1; \
     pecl install redis-5.3.7; \
     pecl install imagick-3.7.0; \
     \