diff --git a/docker/Dockerfile.build b/docker/Dockerfile.build
index 12f5a2b..767c8d0 100644
--- a/docker/Dockerfile.build
+++ b/docker/Dockerfile.build
@@ -1,3 +1,3 @@
-FROM golang:1.19-bullseye
+FROM golang:1.26-trixie
 
 RUN apt-get update && apt-get install -y upx && rm -rf /var/lib/apt/lists/*
diff --git a/docker/Dockerfile.development b/docker/Dockerfile.development
index bfc7744..80a6249 100644
--- a/docker/Dockerfile.development
+++ b/docker/Dockerfile.development
@@ -1,4 +1,4 @@
-FROM golang:1.19-bullseye
+FROM golang:1.26-trixie
 
 RUN apt-get update && apt-get -y install cron python3 sudo procps
 
diff --git a/docker/Dockerfile.example b/docker/Dockerfile.example
index 508ec22..cb3c8a4 100644
--- a/docker/Dockerfile.example
+++ b/docker/Dockerfile.example
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:bookworm
 
 RUN apt-get update && apt-get -y install cron python3 sudo procps
 
diff --git a/docker/Dockerfile.testing b/docker/Dockerfile.testing
index 9064633..4919df8 100644
--- a/docker/Dockerfile.testing
+++ b/docker/Dockerfile.testing
@@ -1,4 +1,4 @@
-FROM golang:1.19-bullseye
+FROM golang:1.26-trixie
 
 RUN apt-get update && apt-get -y install cron python3 sudo procps
 
diff --git a/docker/entrypoint-development.sh b/docker/entrypoint-development.sh
index 08bf82f..ecf79ab 100644
--- a/docker/entrypoint-development.sh
+++ b/docker/entrypoint-development.sh
@@ -4,7 +4,7 @@ set -e
 
 sudo cron -f &
 sleep 1
-sudo ps | grep cron 1>/dev/null
+ps -auxf | grep cron 1>/dev/null
 echo "[+] cron started"
 
 echo "[+] Running as user `id`"
diff --git a/docker/entrypoint-example.sh b/docker/entrypoint-example.sh
index 349bddb..6941369 100644
--- a/docker/entrypoint-example.sh
+++ b/docker/entrypoint-example.sh
@@ -4,7 +4,7 @@ set -e
 
 sudo cron -f &
 sleep 1
-sudo ps | grep cron 1>/dev/null
+ps -auxf | grep cron 1>/dev/null
 echo "[+] cron started"
 
 echo "[+] Running as user `id`"
diff --git a/docker/entrypoint-testing.sh b/docker/entrypoint-testing.sh
index 29ba89c..4720c02 100644
--- a/docker/entrypoint-testing.sh
+++ b/docker/entrypoint-testing.sh
@@ -35,7 +35,7 @@ fi
 
 sudo cron -f &
 sleep 1
-sudo ps | grep cron 1>/dev/null
+ps -auxf | grep cron 1>/dev/null
 echo "[+] cron started"
 
 echo "[+] Running as user `id`"
diff --git a/go.mod b/go.mod
index dd7c550..161ab36 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/dominicbreuker/pspy
 
-go 1.18
+go 1.26
 
 require (
 	github.com/spf13/cobra v1.4.0