diff --git a/environment-dev.yml b/environment-dev.yml
index edc013c4..a6a7cf58 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -9,7 +9,8 @@ dependencies:
   # Host dependencies
   - xeus>=5.0.0
   - xeus-zmq<4.0
-  - nlohmann_json=3.12.0
+  - nlohmann_json
+  - nlohmann_json-abi
   - CppInterOp
   - pugixml
   - cpp-argparse
diff --git a/environment-wasm-build.yml b/environment-wasm-build.yml
index 12afc8d8..cf716ed5 100644
--- a/environment-wasm-build.yml
+++ b/environment-wasm-build.yml
@@ -1,7 +1,7 @@
 name: xeus-cpp-wasm-build
 channels:
-  - https://repo.prefix.dev/emscripten-forge-dev
-  - conda-forge
+  - https://prefix.dev/emscripten-forge-dev
+  - https://prefix.dev/conda-forge
 dependencies:
   - cmake
   - emscripten_emscripten-wasm32==3.1.73
\ No newline at end of file
diff --git a/environment-wasm-host.yml b/environment-wasm-host.yml
index f0c24fee..54aa77ca 100644
--- a/environment-wasm-host.yml
+++ b/environment-wasm-host.yml
@@ -1,9 +1,10 @@
 name: xeus-cpp-wasm-host
 channels:
-  - https://repo.prefix.dev/emscripten-forge-dev
-  - https://repo.mamba.pm/conda-forge
+  - https://prefix.dev/emscripten-forge-dev
+  - https://prefix.dev/conda-forge
 dependencies:
-  - nlohmann_json=3.12.0
+  - nlohmann_json
+  - nlohmann_json-abi
   - xeus-lite
   - xeus
   - CppInterOp