diff --git a/Dockerfile b/Dockerfile
index c4325a9..73b610b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,14 @@ FROM gnzsnz/ib-gateway:latest
 
 USER root
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends python3-pip xdotool && \
+    apt-get install -y --no-install-recommends \
+        # IB Gateway 10.45.x starts a JavaFX thread that now requires GTK runtime libs.
+        libcanberra-gtk3-module \
+        libglib2.0-0 \
+        libgtk-3-0 \
+        libxtst6 \
+        python3-pip \
+        xdotool && \
     pip3 install pyotp ib_insync --break-system-packages && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
diff --git a/tests/test_docker_compose_ports.sh b/tests/test_docker_compose_ports.sh
index c11b6d1..0d0e613 100644
--- a/tests/test_docker_compose_ports.sh
+++ b/tests/test_docker_compose_ports.sh
@@ -6,6 +6,9 @@ compose_file="$repo_dir/docker-compose.yml"
 dockerfile="$repo_dir/Dockerfile"
 
 grep -Fq 'pip3 install pyotp ib_insync --break-system-packages' "$dockerfile"
+grep -Fq 'libgtk-3-0' "$dockerfile"
+grep -Fq 'libglib2.0-0' "$dockerfile"
+grep -Fq 'libxtst6' "$dockerfile"
 
 grep -Fq '      - "4001:4003"' "$compose_file"
 grep -Fq '      - "4002:4004"' "$compose_file"