diff --git a/.docker/env.dev.volumes.yml b/.docker/env.dev.volumes.yml
index 838848c..faa951d 100644
--- a/.docker/env.dev.volumes.yml
+++ b/.docker/env.dev.volumes.yml
@@ -8,6 +8,12 @@ services:
       read_only: true
       volume:
         nocopy: true
+    - type: volume
+      source: typo3confext
+      target: /app/public/typo3conf/ext
+      read_only: true
+      volume:
+        nocopy: true
     - type: volume
       source: typo3temp
       target: /app/private/typo3temp
@@ -19,6 +25,7 @@ services:
     volumes:
     - fileadmin:/app/private/fileadmin
     - ./private/fileadmin/form_definitions:/app/private/fileadmin/form_definitions
+    - typo3confext:/app/private/typo3conf/ext
     - typo3temp:/app/private/typo3temp
     - var:/app/var
     - ./var/labels:/app/var/labels
@@ -31,5 +38,6 @@ services:
 volumes:
   db:
   fileadmin:
+  typo3confext:
   typo3temp:
   var:
diff --git a/.docker/env.prod.yml b/.docker/env.prod.yml
index a0b26ed..1103e3a 100644
--- a/.docker/env.prod.yml
+++ b/.docker/env.prod.yml
@@ -8,6 +8,12 @@ services:
       read_only: true
       volume:
         nocopy: true
+    - type: volume
+      source: typo3confext
+      target: /app/public/typo3conf/ext
+      read_only: true
+      volume:
+        nocopy: true
     - type: volume
       source: typo3temp
       target: /app/private/typo3temp
@@ -18,10 +24,12 @@ services:
   typo3:
     volumes:
     - fileadmin:/app/private/fileadmin
+    - typo3confext:/app/private/typo3conf/ext
     - typo3temp:/app/private/typo3temp
     - var:/app/var
 
 volumes:
   fileadmin:
+  typo3confext:
   typo3temp:
   var: