diff --git a/vanilla/Dockerfile b/vanilla/Dockerfile
index 427d542..1968961 100644
--- a/vanilla/Dockerfile
+++ b/vanilla/Dockerfile
@@ -14,7 +14,7 @@ RUN apt-get -y update && apt-get autoclean && apt-get autoremove \
 	&& wget https://packages.microsoft.com/config/debian/12/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
 	&& dpkg -i packages-microsoft-prod.deb \
 	&& rm packages-microsoft-prod.deb \
-	&& apt-get -y update && apt-get install dotnet-sdk-7.0 bzip2 jq wget pgrep screen -y \
+	&& apt-get -y update && apt-get install dotnet-sdk-7.0 bzip2 jq wget procps pcregrep screen -y \
 	&& useradd vintagestory -s /sbin/nologin -m \
 	&& apt-get -y --fix-broken install \
 	&& rm -rf /var/lib/apt/lists/* \