diff --git a/.ci/gitlab/.gitlab-ci.yml b/.ci/gitlab/.gitlab-ci.yml
index 4b8acc283b3..8533babfeb5 100644
--- a/.ci/gitlab/.gitlab-ci.yml
+++ b/.ci/gitlab/.gitlab-ci.yml
@@ -607,7 +607,7 @@ tools-sdk-build:
 
 tutorial-generate:
   extends: [ ".tutorial", ".generate-x86_64"]
-  image: ghcr.io/spack/tutorial-ubuntu-22.04:2026-03-10
+  image: ghcr.io/spack/tutorial-ubuntu-26.04:pr-84@sha256:62595582f6bcd19fac46186c1062cd8896f79cc23d5a3f5c87cc8a7e20d19202
 
 tutorial-build:
   extends: [ ".tutorial", ".build" ]
diff --git a/stacks/tutorial/spack.yaml b/stacks/tutorial/spack.yaml
index 53167dce4f5..b094d18d934 100644
--- a/stacks/tutorial/spack.yaml
+++ b/stacks/tutorial/spack.yaml
@@ -14,9 +14,9 @@ spack:
   specs:
   - group: compiler
     specs:
-    - gcc@12 ~binutils
+    - gcc@16 build_type=Release +profiled +strip
 
-  - group: "gcc@11 specs"
+  - group: "gcc@15 specs"
     specs:
     - zlib-ng@2.2.4
     - zlib-ng@2.0.7
@@ -37,11 +37,11 @@ spack:
     override:
       packages:
         c:
-          prefer: [gcc@11]
+          prefer: [gcc@15]
         cxx:
-          prefer: [gcc@11]
+          prefer: [gcc@15]
         fortran:
-          prefer: [gcc@11]
+          prefer: [gcc@15]
 
   - group: scalapacks
     needs: [compiler]
@@ -55,16 +55,16 @@ spack:
     override:
       packages:
         c:
-          prefer: [gcc@12]
+          prefer: [gcc@16]
         cxx:
-          prefer: [gcc@12]
+          prefer: [gcc@16]
         fortran:
-          prefer: [gcc@12]
+          prefer: [gcc@16]
   # Miscellaneous specs use the default group
-  - zlib-ng@2.2.4%gcc@10
-  - matrix:
-    - [ zlib-ng@2.2.4, tcl ^zlib-ng@2.0.7 ]
-    - [ '%clang@14' ]
+  # - zlib-ng@2.2.4%gcc@10
+  #- matrix:
+  #  - [ zlib-ng@2.2.4, tcl ^zlib-ng@2.0.7 ]
+  #  - [ '%clang@14' ]
 
   concretizer:
     unify: false
@@ -73,7 +73,7 @@ spack:
     pipeline-gen:
     - build-job:
         image:
-          name: ghcr.io/spack/tutorial-ubuntu-22.04:v2023-10-30
+          name: ghcr.io/spack/tutorial-ubuntu-26.04:pr-84@sha256:62595582f6bcd19fac46186c1062cd8896f79cc23d5a3f5c87cc8a7e20d19202
           entrypoint: ['']
 
   cdash: