diff --git a/.github/workflows/build/Dockerfile.ubuntu-2004 b/.github/workflows/build/Dockerfile.ubuntu-2004
index d7ac2b296..c0907397c 100644
--- a/.github/workflows/build/Dockerfile.ubuntu-2004
+++ b/.github/workflows/build/Dockerfile.ubuntu-2004
@@ -35,5 +35,5 @@ RUN apt-get update -y && apt-get install -y \
     # Python
     python3-pip \
     rubygems && \
-    gem install --no-document dotenv:2.8.1 fpm:1.14.2 && \
+    gem install --no-document public_suffix:5.1.1 dotenv:2.8.1 fpm:1.14.2 && \
     pip3 install Cython==0.29.36
\ No newline at end of file