diff --git a/customers/base/apache-php-configmap.yml b/customers/base/apache-php-configmap.yml
index 5802cc9..8d06115 100644
--- a/customers/base/apache-php-configmap.yml
+++ b/customers/base/apache-php-configmap.yml
@@ -153,7 +153,7 @@ data:
     [dba]
     ; Nothing here
     [opcache]
-    opcache.interned_strings_buffer=128
+    opcache.interned_strings_buffer=64
     [curl]
     ; Nothing here
     [openssl]
diff --git a/customers/base/cli-php-configmap.yml b/customers/base/cli-php-configmap.yml
index 59923b2..3e1354f 100644
--- a/customers/base/cli-php-configmap.yml
+++ b/customers/base/cli-php-configmap.yml
@@ -153,7 +153,7 @@ data:
     [dba]
     ; Nothing here
     [opcache]
-    opcache.interned_strings_buffer=128
+    opcache.interned_strings_buffer=64
     [curl]
     ; Nothing here
     [openssl]