diff --git a/Dockerfile-bullseye b/Dockerfile-bullseye
index 53ef12d..adb3596 100644
--- a/Dockerfile-bullseye
+++ b/Dockerfile-bullseye
@@ -2,7 +2,7 @@
 # 
 # base layer with perl and some general preparations
 #
-FROM perl:5.36.3-slim-bullseye as base
+FROM perl:5.38.0-slim-bullseye@sha256:db16b1cb6e0932317e8e90adbbd3e693f886f12ec36c1ba7d0a8156820ab4f30 as base
 
 ARG TARGETPLATFORM
 
@@ -46,7 +46,7 @@ EOF
 # Install all CPAN Modules, needed from FHEM and standard modules
 #
 
-FROM perl:5.36.3-bullseye as build-cpan 
+FROM perl:5.38.2-bullseye@sha256:8c293d18128d6ec94cc2a253d732d762e9df76dbca1cbc285253d7b6dc4874cd as build-cpan 
 
 COPY cpanfile /usr/src/app/core/cpanfile
 
diff --git a/Dockerfile-threaded-bullseye b/Dockerfile-threaded-bullseye
index ad60e58..7fd1925 100644
--- a/Dockerfile-threaded-bullseye
+++ b/Dockerfile-threaded-bullseye
@@ -2,7 +2,7 @@
 # 
 # base layer with perl and some general preparations
 #
-FROM perl:5.36.3-slim-threaded-bullseye as base
+FROM perl:5.38.0-slim-threaded-bullseye@sha256:f8f63c3ff9db27f5b53171e3323bb996989ce83784c27581eee1b9092f9bf61f as base
 
 ARG TARGETPLATFORM
 
@@ -46,7 +46,7 @@ EOF
 # Install all CPAN Modules, needed from FHEM and standard modules
 #
 
-FROM perl:5.36.3-threaded-bullseye as build-cpan 
+FROM perl:5.38.2-threaded-bullseye@sha256:0112bb0c83ec455a907c5f8403d152d2f7ef0443d7e732ec689c3bdff52e6b50 as build-cpan 
 
 COPY cpanfile /usr/src/app/core/cpanfile