diff --git a/Dockerfile.ci b/Dockerfile.ci
index 5074698..8f406fd 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -6,6 +6,7 @@ ENV RUSTUP_HOME=/usr/local/rustup \
 
 RUN apt-get update && apt-get install -y \
   ca-certificates=20230311+deb12u1 \
+  gpg=2.2.40-1.1+deb12u2 \
   curl=7.88.1-10+deb12u14 \
   git=1:2.39.5-0+deb12u3 \
   jq=1.6-2.1+deb12u1 \