diff --git a/VERSION b/VERSION
index 46b81d8..6ceb272 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.11.0
+2.11.1
diff --git a/kwin/docker-build/Dockerfile.steamos-3.7 b/kwin/docker-build/Dockerfile.steamos-3.7
index 8e36eba..9fdbfc8 100644
--- a/kwin/docker-build/Dockerfile.steamos-3.7
+++ b/kwin/docker-build/Dockerfile.steamos-3.7
@@ -8,7 +8,10 @@ ARG TARGETPLATFORM
 ENV STEAMOS=3.7
 RUN echo "SteamOS 3.7 build - target platform: $TARGETPLATFORM"
 
-RUN pacman -Sy --noconfirm --needed \
+# CheckSpace can't stat Docker's read-only /etc/hosts and /etc/resolv.conf bind mounts,
+# which aborts the transaction; Arch's own container images disable it for this reason
+RUN sed -i 's/^[[:space:]]*CheckSpace/#CheckSpace/' /etc/pacman.conf \
+ && pacman -Syu --noconfirm --needed \
     ca-certificates \
     base-devel \
     cmake \
@@ -30,6 +33,7 @@ RUN pacman -Sy --noconfirm --needed \
     kxmlgui \
     kwindowsystem \
     kwin \
+    vulkan-headers \
  && pacman -Scc --noconfirm
 
 WORKDIR /source
diff --git a/kwin/docker-build/Dockerfile.steamos-3.8 b/kwin/docker-build/Dockerfile.steamos-3.8
index 077621f..0e8bdb2 100644
--- a/kwin/docker-build/Dockerfile.steamos-3.8
+++ b/kwin/docker-build/Dockerfile.steamos-3.8
@@ -8,7 +8,10 @@ ARG TARGETPLATFORM
 ENV STEAMOS=3.8
 RUN echo "SteamOS 3.8 build - target platform: $TARGETPLATFORM"
 
-RUN pacman -Sy --noconfirm --needed \
+# CheckSpace can't stat Docker's read-only /etc/hosts and /etc/resolv.conf bind mounts,
+# which aborts the transaction; Arch's own container images disable it for this reason
+RUN sed -i 's/^[[:space:]]*CheckSpace/#CheckSpace/' /etc/pacman.conf \
+ && pacman -Syu --noconfirm --needed \
     ca-certificates \
     base-devel \
     cmake \
@@ -30,6 +33,7 @@ RUN pacman -Sy --noconfirm --needed \
     kxmlgui \
     kwindowsystem \
     kwin \
+    vulkan-headers \
  && pacman -Scc --noconfirm
 
 WORKDIR /source
diff --git a/kwin/docker-build/Dockerfile.steamos-3.9 b/kwin/docker-build/Dockerfile.steamos-3.9
index 65c5ab2..2506efd 100644
--- a/kwin/docker-build/Dockerfile.steamos-3.9
+++ b/kwin/docker-build/Dockerfile.steamos-3.9
@@ -8,7 +8,10 @@ ARG TARGETPLATFORM
 ENV STEAMOS=3.9
 RUN echo "SteamOS 3.9 build - target platform: $TARGETPLATFORM"
 
-RUN pacman -Sy --noconfirm --needed \
+# CheckSpace can't stat Docker's read-only /etc/hosts and /etc/resolv.conf bind mounts,
+# which aborts the transaction; Arch's own container images disable it for this reason
+RUN sed -i 's/^[[:space:]]*CheckSpace/#CheckSpace/' /etc/pacman.conf \
+ && pacman -Syu --noconfirm --needed \
     ca-certificates \
     base-devel \
     cmake \
@@ -30,6 +33,7 @@ RUN pacman -Sy --noconfirm --needed \
     kxmlgui \
     kwindowsystem \
     kwin \
+    vulkan-headers \
  && pacman -Scc --noconfirm
 
 WORKDIR /source