diff --git a/README.md b/README.md
index 589d4666..cdbc2d78 100644
--- a/README.md
+++ b/README.md
@@ -364,6 +364,10 @@ may be controlled with the `LOGURU_LEVEL` environment variable.
 
 ## Changelog
 
+### 0.9.0 (coming soon)
+
+- update to [bioimageio.spec 0.5.4.2](https://github.com/bioimage-io/spec-bioimage-io/blob/main/changelog.md#bioimageiospec-0542)
+
 ### 0.8.0
 
 - breaking: removed `decimals` argument from bioimageio CLI and `bioimageio.core.commands.test()`
diff --git a/dev/env-dev.yaml b/dev/env-dev.yaml
index 13378376..f92d2f66 100644
--- a/dev/env-dev.yaml
+++ b/dev/env-dev.yaml
@@ -5,7 +5,7 @@ channels:
   - nodefaults
   - pytorch
 dependencies:
-  - bioimageio.spec==0.5.4.1
+  - bioimageio.spec==0.5.4.2
   - black
   # - crick  # currently requires python<=3.9
   - h5py
@@ -26,7 +26,6 @@ dependencies:
   - psutil
   - pydantic
   - pydantic-settings
-  - pyright
   - pytest
   - pytest-cov
   # - python=3.11  # removed
diff --git a/dev/env-full.yaml b/dev/env-full.yaml
index a9dc0132..3d95030c 100644
--- a/dev/env-full.yaml
+++ b/dev/env-full.yaml
@@ -4,7 +4,7 @@ channels:
   - nodefaults
   - pytorch
 dependencies:
-  - bioimageio.spec==0.5.4.1
+  - bioimageio.spec==0.5.4.2
   - black
   # - careamics # TODO: add careamics for model testing (currently pins pydantic to <2.9)
   - cellpose # for model testing
@@ -28,7 +28,7 @@ dependencies:
   - psutil
   - pydantic
   - pydantic-settings
-  - pyright
+  - pyright==1.1.396
   - pytest
   - pytest-cov
   - python=3.11 # 3.12 not supported by cellpose->fastremap
diff --git a/dev/env-gpu.yaml b/dev/env-gpu.yaml
index 7fc2123c..968f25ba 100644
--- a/dev/env-gpu.yaml
+++ b/dev/env-gpu.yaml
@@ -4,7 +4,7 @@ channels:
   - conda-forge
   - nodefaults
 dependencies:
-  - bioimageio.spec==0.5.4.1
+  - bioimageio.spec==0.5.4.2
   - black
   - cellpose # for model testing
   # - crick  # currently requires python<=3.9
@@ -26,7 +26,7 @@ dependencies:
   - psutil
   - pydantic<2.9
   - pydantic-settings
-  - pyright
+  - pyright==1.1.396
   - pytest
   - pytest-cov
   - python=3.11
diff --git a/dev/env-py38.yaml b/dev/env-py38.yaml
index 6fc6597a..f476f352 100644
--- a/dev/env-py38.yaml
+++ b/dev/env-py38.yaml
@@ -5,7 +5,7 @@ channels:
   - nodefaults
   - pytorch
 dependencies:
-  - bioimageio.spec==0.5.4.1
+  - bioimageio.spec==0.5.4.2
   - black
   - crick # uncommented
   - h5py
@@ -26,7 +26,6 @@ dependencies:
   - psutil
   - pydantic
   - pydantic-settings
-  - pyright
   - pytest
   - pytest-cov
   - python=3.8 # changed
diff --git a/setup.py b/setup.py
index f4e975a5..5460d3a8 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
     ],
     packages=find_namespace_packages(exclude=["tests"]),
     install_requires=[
-        "bioimageio.spec ==0.5.4.1",
+        "bioimageio.spec ==0.5.4.2",
         "h5py",
         "imagecodecs",
         "imageio>=2.10",