diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 9b5e3f7f..e044a025 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -5,10 +5,13 @@ RUN apt update && apt install -y gnupg wget software-properties-common
 RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
 RUN apt-add-repository 'deb https://apt.kitware.com/ubuntu/ jammy main'
 RUN apt install -y \
+        gcc-11 \
+        g++-11 \
         gcc-12 \
         g++-12 \
         gcc-13 \
         g++-13 \
+        clang-15 \
         clang-16 \
         clang-17 \
         git \
diff --git a/.docker/build-linux.sh b/.docker/build-linux.sh
index 6db5e2ca..e42c8571 100644
--- a/.docker/build-linux.sh
+++ b/.docker/build-linux.sh
@@ -35,14 +35,14 @@ case "-$BUILD_TYPE-" in
     export COMPILER=gcc
     ;;
   *-oldgcc-*)
-    export CC=gcc-12 CXX=g++-12
+    export CC=gcc-11 CXX=g++-11
     ;;
   *-clang-*)
     export CC=clang-17 CXX=clang++-17
     export COMPILER=clang
     ;;
   *-oldclang-*)
-    export CC=clang-16 CXX=clang++-16
+    export CC=clang-15 CXX=clang++-15
     ;;
   *)
     echo "missing compiler in: $BUILD_TYPE"