diff --git a/Dockerfile.ubuntu18 b/Dockerfile.ubuntu18
index f26a16a..fbc3224 100644
--- a/Dockerfile.ubuntu18
+++ b/Dockerfile.ubuntu18
@@ -1,4 +1,3 @@
-FROM ubuntu:18.04
+FROM ubuntu:jammy
 
-RUN apt update -y && apt install -y build-essential g++ gcc cmake make git wget curl ca-certificates libssl-dev
-RUN wget https://github.com/Kitware/CMake/releases/download/v3.20.0/cmake-3.20.0.tar.gz && tar -zvxf cmake-3.20.0.tar.gz && cd cmake-3.20.0 && ./bootstrap --parallel=`nproc` && make -j`nproc` && make install
\ No newline at end of file
+RUN apt update -y && apt install -y build-essential g++ gcc cmake make git wget curl ca-certificates
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