diff --git a/configs/common/packages.yaml b/configs/common/packages.yaml
index a94ca5aa0..5bb61841a 100644
--- a/configs/common/packages.yaml
+++ b/configs/common/packages.yaml
@@ -55,7 +55,7 @@ packages:
     require: '@0.40.0 +fckit +trans +tesselation +fftw'
   ectrans:
     require:
-    - '@1.5.0'
+    - '@1.2.0'
   eigen:
     require: '@3.4.0'
   # Attention - when updating the version also check the common modules.yaml
diff --git a/configs/containers/specs/jedi-ci.yaml b/configs/containers/specs/jedi-ci.yaml
index 6f93c5432..db7c9501d 100644
--- a/configs/containers/specs/jedi-ci.yaml
+++ b/configs/containers/specs/jedi-ci.yaml
@@ -15,7 +15,7 @@
     eckit@1.28.3,
     ecmwf-atlas@0.40.0 +fckit +trans +tesselation +fftw,
     fiat@1.4.1,
-    ectrans@1.5.0 +fftw,
+    ectrans@1.2.0 +fftw,
     eigen@3.4.0,
     fckit@0.13.2,
     fms@2024.02,
diff --git a/configs/sites/tier1/acorn/packages_intel.yaml b/configs/sites/tier1/acorn/packages_intel.yaml
index a55cad6ad..b9cfc096c 100644
--- a/configs/sites/tier1/acorn/packages_intel.yaml
+++ b/configs/sites/tier1/acorn/packages_intel.yaml
@@ -25,7 +25,7 @@
     # DH* Remove this section to switch to intel-oneapi-mkl
     ectrans:
       require::
-      - '@1.5.0 ~mkl +fftw'
+      - '@1.2.0 ~mkl +fftw'
     gsibec:
       require::
       - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/aws-pcluster/packages_intel.yaml b/configs/sites/tier1/aws-pcluster/packages_intel.yaml
index 7a7fec11c..7c04e9b9a 100644
--- a/configs/sites/tier1/aws-pcluster/packages_intel.yaml
+++ b/configs/sites/tier1/aws-pcluster/packages_intel.yaml
@@ -25,7 +25,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/gaea-c5/packages.yaml b/configs/sites/tier1/gaea-c5/packages.yaml
index 9d59b8bbd..7bbc7f43f 100644
--- a/configs/sites/tier1/gaea-c5/packages.yaml
+++ b/configs/sites/tier1/gaea-c5/packages.yaml
@@ -29,7 +29,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/gaea-c6/packages.yaml b/configs/sites/tier1/gaea-c6/packages.yaml
index 224b56831..7e8797f4b 100644
--- a/configs/sites/tier1/gaea-c6/packages.yaml
+++ b/configs/sites/tier1/gaea-c6/packages.yaml
@@ -28,7 +28,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/hera/packages_intel.yaml b/configs/sites/tier1/hera/packages_intel.yaml
index 514424a99..ad7ec6512 100644
--- a/configs/sites/tier1/hera/packages_intel.yaml
+++ b/configs/sites/tier1/hera/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/hercules/packages_intel.yaml b/configs/sites/tier1/hercules/packages_intel.yaml
index d7c7dbe21..3642bdc7b 100644
--- a/configs/sites/tier1/hercules/packages_intel.yaml
+++ b/configs/sites/tier1/hercules/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/nautilus/packages_aocc.yaml b/configs/sites/tier1/nautilus/packages_aocc.yaml
index 65092508b..380d51b6e 100644
--- a/configs/sites/tier1/nautilus/packages_aocc.yaml
+++ b/configs/sites/tier1/nautilus/packages_aocc.yaml
@@ -26,7 +26,7 @@ packages:
     buildable: False
   ectrans:
     require::
-    - '@1.5.0 +mkl ~fftw'
+    - '@1.2.0 +mkl ~fftw'
   gsibec:
     require::
     - '@1.2.1 +mkl'
diff --git a/configs/sites/tier1/nautilus/packages_gcc.yaml b/configs/sites/tier1/nautilus/packages_gcc.yaml
index c97a48ba8..2e47c9e0e 100644
--- a/configs/sites/tier1/nautilus/packages_gcc.yaml
+++ b/configs/sites/tier1/nautilus/packages_gcc.yaml
@@ -25,7 +25,7 @@ packages:
     buildable: False
   ectrans:
     require::
-    - '@1.5.0 +mkl ~fftw'
+    - '@1.2.0 +mkl ~fftw'
   gsibec:
     require::
     - '@1.2.1 +mkl'
diff --git a/configs/sites/tier1/noaa-aws/packages_intel.yaml b/configs/sites/tier1/noaa-aws/packages_intel.yaml
index 665c8aaa0..0700f2c4b 100644
--- a/configs/sites/tier1/noaa-aws/packages_intel.yaml
+++ b/configs/sites/tier1/noaa-aws/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/noaa-azure/packages_intel.yaml b/configs/sites/tier1/noaa-azure/packages_intel.yaml
index 665c8aaa0..0700f2c4b 100644
--- a/configs/sites/tier1/noaa-azure/packages_intel.yaml
+++ b/configs/sites/tier1/noaa-azure/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/noaa-gcloud/packages_intel.yaml b/configs/sites/tier1/noaa-gcloud/packages_intel.yaml
index 665c8aaa0..0700f2c4b 100644
--- a/configs/sites/tier1/noaa-gcloud/packages_intel.yaml
+++ b/configs/sites/tier1/noaa-gcloud/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # DH* Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/orion/packages_intel.yaml b/configs/sites/tier1/orion/packages_intel.yaml
index d7c7dbe21..3642bdc7b 100644
--- a/configs/sites/tier1/orion/packages_intel.yaml
+++ b/configs/sites/tier1/orion/packages_intel.yaml
@@ -24,7 +24,7 @@ packages:
   # Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'
diff --git a/configs/sites/tier1/s4/packages.yaml b/configs/sites/tier1/s4/packages.yaml
index 08acf079c..1981196d2 100644
--- a/configs/sites/tier1/s4/packages.yaml
+++ b/configs/sites/tier1/s4/packages.yaml
@@ -31,7 +31,7 @@ packages:
   # Remove this section to switch to intel-oneapi-mkl
   ectrans:
     require::
-    - '@1.5.0 ~mkl +fftw'
+    - '@1.2.0 ~mkl +fftw'
   gsibec:
     require::
     - '@1.2.1 ~mkl'