diff --git a/1.6/Dockerfile b/1.6/Dockerfile
index 8d022e5..311d329 100644
--- a/1.6/Dockerfile
+++ b/1.6/Dockerfile
@@ -1,4 +1,4 @@
-FROM php:7.3.27-fpm-buster@sha256:8bd85a85d9c825a56c36f4725d8c5d910113325e811c2e005b01763bec3e6e7b
+FROM php:7.4.16-fpm-buster@sha256:67d3dba316f44f4092400871cb909f7c3eff454811b8d7064f93a1bf5fa82e47
 
 SHELL [ "/bin/bash", "-exo", "pipefail", "-c" ]
 
diff --git a/1.6/Dockerfile.prod b/1.6/Dockerfile.prod
index 68631b4..4cbfa7b 100644
--- a/1.6/Dockerfile.prod
+++ b/1.6/Dockerfile.prod
@@ -1,4 +1,4 @@
-FROM php:7.3.27-fpm-buster@sha256:8bd85a85d9c825a56c36f4725d8c5d910113325e811c2e005b01763bec3e6e7b
+FROM php:7.4.16-fpm-buster@sha256:67d3dba316f44f4092400871cb909f7c3eff454811b8d7064f93a1bf5fa82e47
 
 SHELL [ "/bin/bash", "-exo", "pipefail", "-c" ]