diff --git a/recipe/conda_build_config.yaml b/recipe/conda_build_config.yaml
index 909653b01a..3b2a20d1b5 100644
--- a/recipe/conda_build_config.yaml
+++ b/recipe/conda_build_config.yaml
@@ -12,9 +12,9 @@ c_compiler_version:            # [unix]
   - 11                         # [osx and arm64]
   - 10                         # [osx and x86_64]
   - 7                          # [linux64]
-  - 7.5                        # [aarch64]
+  - 7                          # [aarch64]
   - 8                          # [ppc64le]
-  - 8.3                        # [armv7l]
+  - 8                          # [armv7l]
 cxx_compiler:
   - gxx                        # [linux]
   - clangxx                    # [osx]
@@ -23,20 +23,20 @@ cxx_compiler_version:          # [unix]
   - 11                         # [osx and arm64]
   - 10                         # [osx and x86_64]
   - 7                          # [linux64]
-  - 7.5                        # [aarch64]
+  - 7                          # [aarch64]
   - 8                          # [ppc64le]
-  - 8.3                        # [armv7l]
+  - 8                          # [armv7l]
 fortran_compiler:              # [unix or win64]
   - gfortran                   # [linux64 or (osx and x86_64)]
   - gfortran                   # [aarch64 or ppc64le or armv7l]
   - flang                      # [win64]
 fortran_compiler_version:      # [unix or win64]
   - 11                         # [osx and arm64]
-  - 7.5                        # [osx and x86_64]
+  - 7                          # [osx and x86_64]
   - 7                          # [linux64]
-  - 7.5.0                      # [aarch64]
+  - 7                          # [aarch64]
   - 8                          # [ppc64le]
-  - 8.3                        # [armv7l]
+  - 8                          # [armv7l]
   - 5                          # [win64]
 m2w64_c_compiler:              # [win]
   - m2w64-toolchain            # [win]
diff --git a/recipe/migrations/gcc930.yaml b/recipe/migrations/gcc930.yaml
new file mode 100644
index 0000000000..9489bddc08
--- /dev/null
+++ b/recipe/migrations/gcc930.yaml
@@ -0,0 +1,28 @@
+migrator_ts: 1602079781
+
+__migrator:
+  kind:
+    version
+  migration_number: 1
+  build_number: 1
+  override_cbc_keys:
+    - fortran_compiler_stub
+
+c_compiler_version:            # [unix]
+  - 11                         # [osx and arm64]
+  - 10                         # [osx and x86_64]
+  - 9                          # [linux64 or aarch64 or ppc64le]
+
+cxx_compiler_version:          # [unix]
+  - 11                         # [osx and arm64]
+  - 10                         # [osx and x86_64]
+  - 9                          # [linux64 or aarch64 or ppc64le]
+
+fortran_compiler_version:      # [unix or win64]
+  - 11                         # [osx and arm64]
+  - 9                          # [(osx and x86_64) or linux64 or aarch64 or ppc64le]
+  - 5                          # [win64]
+  # we are keeping both versions for a while during the migration
+  # we need to remove 7/8 when the migration is done
+  - 7                          # [(osx and x86_64) or linux64 or aarch64]
+  - 8                          # [ppc64le]