diff --git a/services/phew/Dockerfile b/services/phew/Dockerfile
index d6fd39a..c8b210d 100644
--- a/services/phew/Dockerfile
+++ b/services/phew/Dockerfile
@@ -27,7 +27,11 @@ COPY ./src /home/ctfuser/chall/src
 COPY ./start.sh /start.sh
 RUN chmod +x /start.sh /home/ctfuser/chall/src/run.sh
 
-RUN chown -R root:root /home/ctfuser/chall && chmod -R 555 /home/ctfuser/chall
+RUN chown -R root:root /home/ctfuser/chall && \
+    chmod -R 555 /home/ctfuser/chall && \
+    chown ctfuser:ctfuser /home/ctfuser/chall/src/Pailier.py && \
+    chmod 755 /home/ctfuser/chall/src/Pailier.py
 
 EXPOSE 8000 22
 CMD ["/start.sh"]
+
diff --git a/services/phew/dist/chall.py b/services/phew/dist/chall.py
index da38716..64d2935 100644
--- a/services/phew/dist/chall.py
+++ b/services/phew/dist/chall.py
@@ -3,7 +3,7 @@
 import signal
 from Pailier import *
 from Crypto.Util.number import *
-signal.alarm(45)
+signal.alarm(50)
 with open("/flag.txt", "rb") as f:
     flag = f.read()
 flag = bytes_to_long(flag)
diff --git a/services/phew/src/chall.py b/services/phew/src/chall.py
index da38716..64d2935 100644
--- a/services/phew/src/chall.py
+++ b/services/phew/src/chall.py
@@ -3,7 +3,7 @@
 import signal
 from Pailier import *
 from Crypto.Util.number import *
-signal.alarm(45)
+signal.alarm(50)
 with open("/flag.txt", "rb") as f:
     flag = f.read()
 flag = bytes_to_long(flag)
diff --git a/services/sheesh/Dockerfile b/services/sheesh/Dockerfile
index 04a3a37..bce1805 100644
--- a/services/sheesh/Dockerfile
+++ b/services/sheesh/Dockerfile
@@ -2,8 +2,8 @@ FROM python:3.12-slim
 
 ARG PASSWORD=root
 ENV DEBIAN_FRONTEND=noninteractive
-ENV HOME=/home/ctf
-WORKDIR /home/ctf/chall
+ENV HOME=/home/ctfuser
+WORKDIR /home/ctfuser/chall
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     openssh-server \
@@ -15,19 +15,22 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     bash \
     && rm -rf /var/lib/apt/lists/*
 
-RUN useradd -m -d /home/ctf -s /bin/bash ctf && \
-    echo "ctf:${PASSWORD}" | chpasswd
+RUN useradd -m -d /home/ctfuser -s /bin/bash ctfuser && \
+    echo "ctfuser:${PASSWORD}" | chpasswd
 
 RUN mkdir -p /var/run/sshd
 
 COPY requirements.txt /tmp/requirements.txt
 RUN pip install --no-cache-dir -r /tmp/requirements.txt
 
-COPY ./src /home/ctf/chall/src
+COPY ./src /home/ctfuser/chall/src
 COPY ./start.sh /start.sh
-RUN chmod +x /start.sh /home/ctf/chall/src/run.sh
+RUN chmod +x /start.sh /home/ctfuser/chall/src/run.sh
 
-RUN chown -R root:root /home/ctf/chall && chmod -R 555 /home/ctf/chall
+RUN chown -R root:root /home/ctfuser/chall && \
+    chmod -R 555 /home/ctfuser/chall && \
+    chown ctfuser:ctfuser /home/ctfuser/chall/src/chall.py && \
+    chmod 755 /home/ctfuser/chall/src/chall.py
 
 EXPOSE 8000 22
 CMD ["/start.sh"]