diff --git a/4/apache/Dockerfile b/4/apache/Dockerfile
index dd98c68..c11a617 100644
--- a/4/apache/Dockerfile
+++ b/4/apache/Dockerfile
@@ -59,7 +59,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \
diff --git a/4/fpm-alpine/Dockerfile b/4/fpm-alpine/Dockerfile
index f4fda4a..75379fe 100644
--- a/4/fpm-alpine/Dockerfile
+++ b/4/fpm-alpine/Dockerfile
@@ -50,7 +50,7 @@ RUN set -ex; \
     ; \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \
diff --git a/4/fpm/Dockerfile b/4/fpm/Dockerfile
index 7feea4e..33a75fb 100644
--- a/4/fpm/Dockerfile
+++ b/4/fpm/Dockerfile
@@ -59,7 +59,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \
diff --git a/5/apache/Dockerfile b/5/apache/Dockerfile
index 7c17c23..ca91c56 100644
--- a/5/apache/Dockerfile
+++ b/5/apache/Dockerfile
@@ -59,7 +59,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \
diff --git a/5/fpm-alpine/Dockerfile b/5/fpm-alpine/Dockerfile
index 4a19282..cbad81e 100644
--- a/5/fpm-alpine/Dockerfile
+++ b/5/fpm-alpine/Dockerfile
@@ -50,7 +50,7 @@ RUN set -ex; \
     ; \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \
diff --git a/5/fpm/Dockerfile b/5/fpm/Dockerfile
index 63fea02..770d340 100644
--- a/5/fpm/Dockerfile
+++ b/5/fpm/Dockerfile
@@ -59,7 +59,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.23; \
-    pecl install memcached-3.2.0; \
+    pecl install memcached-3.3.0; \
     pecl install redis-6.0.2; \
     \
     docker-php-ext-enable \