diff --git a/.github/workflows/continuous-integration-workflow.yml b/.github/workflows/continuous-integration-workflow.yml
index b545c87..1ec4a18 100644
--- a/.github/workflows/continuous-integration-workflow.yml
+++ b/.github/workflows/continuous-integration-workflow.yml
@@ -28,8 +28,6 @@ jobs:
           - {dockerfile: 'opensuse', tag: 'latest',       continue-on-error: 'true'}
           - {dockerfile: 'fedora',   tag: 'latest',       build_args: 'GMX_BRANCH=release-2019,GMX_DOUBLE=ON'}
           - {dockerfile: 'fedora',   tag: 'gmx2019',      build_args: 'GMX_BRANCH=release-2019'}
-          - {dockerfile: 'fedora',   tag: 'gmx2019.6_d',  build_args: 'GMX_BRANCH=v2019.6,GMX_DOUBLE=ON'}
-          - {dockerfile: 'fedora',   tag: 'gmx2019.6',    build_args: 'GMX_BRANCH=v2019.6'}
           - {dockerfile: 'fedora',   tag: 'gmx2024_d',    build_args: 'GMX_BRANCH=release-2024,GMX_DOUBLE=ON'}
           - {dockerfile: 'fedora',   tag: 'gmx2024',      build_args: 'GMX_BRANCH=release-2024'}
           - {dockerfile: 'fedora',   tag: 'gmx9999_d',    build_args: 'GMX_BRANCH=main,GMX_DOUBLE=ON', continue-on-error: 'true'}
diff --git a/fedora b/fedora
index 7456ff5..75a9911 100644
--- a/fedora
+++ b/fedora
@@ -52,7 +52,7 @@ ENV OMPI_MCA_mtl=^ofi
 # build certain gromacs version as user
 RUN if [ -n "${GMX_BRANCH}" ] && [ "${GMX_BRANCH}" != "none" ]; then \
   git clone --depth 1 -b "${GMX_BRANCH}" https://gitlab.com/gromacs/gromacs.git && \
-  if [[ "${GMX_BRANCH}" != *2019* ]]; then \
+  if [ "${GMX_BRANCH}" != release-2019 ]; then \
     gmx_cmake_opts="-DGMX_INSTALL_LEGACY_API=ON"; \
   else \
     curl https://gitlab.com/gromacs/gromacs/-/merge_requests/1524.patch | patch -d gromacs -p 1; \