diff --git a/15.0/apache/Dockerfile b/15.0/apache/Dockerfile
index 8566a962..2dc2fb81 100644
--- a/15.0/apache/Dockerfile
+++ b/15.0/apache/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/15.0/fpm-alpine/Dockerfile b/15.0/fpm-alpine/Dockerfile
index 405277cd..b5895f2e 100644
--- a/15.0/fpm-alpine/Dockerfile
+++ b/15.0/fpm-alpine/Dockerfile
@@ -52,7 +52,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/15.0/fpm/Dockerfile b/15.0/fpm/Dockerfile
index 107ea1a3..21c09620 100644
--- a/15.0/fpm/Dockerfile
+++ b/15.0/fpm/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/16.0/apache/Dockerfile b/16.0/apache/Dockerfile
index ca1ae292..2e1ca045 100644
--- a/16.0/apache/Dockerfile
+++ b/16.0/apache/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/16.0/fpm-alpine/Dockerfile b/16.0/fpm-alpine/Dockerfile
index 419b3ba3..9e193e49 100644
--- a/16.0/fpm-alpine/Dockerfile
+++ b/16.0/fpm-alpine/Dockerfile
@@ -52,7 +52,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/16.0/fpm/Dockerfile b/16.0/fpm/Dockerfile
index 3f9d4013..4f0617bc 100644
--- a/16.0/fpm/Dockerfile
+++ b/16.0/fpm/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/17.0/apache/Dockerfile b/17.0/apache/Dockerfile
index acd53038..a55fcf22 100644
--- a/17.0/apache/Dockerfile
+++ b/17.0/apache/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/17.0/fpm-alpine/Dockerfile b/17.0/fpm-alpine/Dockerfile
index 00353ccb..ce33a7f2 100644
--- a/17.0/fpm-alpine/Dockerfile
+++ b/17.0/fpm-alpine/Dockerfile
@@ -52,7 +52,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \
diff --git a/17.0/fpm/Dockerfile b/17.0/fpm/Dockerfile
index 9f89a4e1..8046714d 100644
--- a/17.0/fpm/Dockerfile
+++ b/17.0/fpm/Dockerfile
@@ -60,7 +60,7 @@ RUN set -ex; \
     \
 # pecl will claim success even if one install fails, so we need to perform each install separately
     pecl install APCu-5.1.18; \
-    pecl install memcached-3.1.4; \
+    pecl install memcached-3.1.5; \
     pecl install redis-4.3.0; \
     pecl install imagick-3.4.4; \
     \