diff --git a/Dockerfile b/Dockerfile
index 4aea9fa..0550324 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,9 @@
-FROM --platform=linux/amd64 almalinux:9
+FROM --platform=linux/amd64 almalinux:9.5
 RUN yum install -y epel-release  # extra packages (netcdf etc...)
 RUN yum install -y boost-regex boost-filesystem xerces-c boost-program-options netcdf netcdf-cxx4  # dependencies
 RUN mkdir /src
 WORKDIR /src
-RUN curl "https://archive.eol.ucar.edu/docs/software/aspen/AspenV4.0.2_AlmaLinux9.4_x86_64.tar.gz" | tar -xzf -
-WORKDIR /src/AspenV4.0.2_AlmaLinux9.4_x86_64/bin/
+RUN curl "https://archive.eol.ucar.edu/docs/software/aspen/AspenV4.0.4_AlmaLinux9.5_x86_64.tar.gz" | tar -xzf -
+WORKDIR /src/AspenV4.0.4_AlmaLinux9.5_x86_64/bin/
 ENTRYPOINT ["./Aspen-QC"]
 CMD ["-i", "-e"]