diff --git a/conda/environments/all_cuda-118_arch-aarch64.yaml b/conda/environments/all_cuda-118_arch-aarch64.yaml
index 26f3703daf..b94c2b8780 100644
--- a/conda/environments/all_cuda-118_arch-aarch64.yaml
+++ b/conda/environments/all_cuda-118_arch-aarch64.yaml
@@ -17,7 +17,7 @@ dependencies:
 - cython>=3.0.0
 - doxygen=1.9.1
 - gcc_linux-aarch64=11.*
-- libcurl>=8.5.0
+- libcurl>=8.5.0,<9.0a0
 - moto>=4.0.8
 - ninja
 - numcodecs !=0.12.0
diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 4e206bbe6e..87d6fc1025 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -19,7 +19,7 @@ dependencies:
 - gcc_linux-64=11.*
 - libcufile-dev=1.4.0.31
 - libcufile=1.4.0.31
-- libcurl>=8.5.0
+- libcurl>=8.5.0,<9.0a0
 - moto>=4.0.8
 - ninja
 - numcodecs !=0.12.0
diff --git a/conda/environments/all_cuda-125_arch-aarch64.yaml b/conda/environments/all_cuda-125_arch-aarch64.yaml
index 09038a7d08..1ace3210a8 100644
--- a/conda/environments/all_cuda-125_arch-aarch64.yaml
+++ b/conda/environments/all_cuda-125_arch-aarch64.yaml
@@ -18,7 +18,7 @@ dependencies:
 - doxygen=1.9.1
 - gcc_linux-aarch64=11.*
 - libcufile-dev
-- libcurl>=8.5.0
+- libcurl>=8.5.0,<9.0a0
 - moto>=4.0.8
 - ninja
 - numcodecs !=0.12.0
diff --git a/conda/environments/all_cuda-125_arch-x86_64.yaml b/conda/environments/all_cuda-125_arch-x86_64.yaml
index 7c70359d57..25b6a075de 100644
--- a/conda/environments/all_cuda-125_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-125_arch-x86_64.yaml
@@ -18,7 +18,7 @@ dependencies:
 - doxygen=1.9.1
 - gcc_linux-64=11.*
 - libcufile-dev
-- libcurl>=8.5.0
+- libcurl>=8.5.0,<9.0a0
 - moto>=4.0.8
 - ninja
 - numcodecs !=0.12.0
diff --git a/dependencies.yaml b/dependencies.yaml
index 3a4e98a3c2..fdc29df8e0 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -114,7 +114,7 @@ dependencies:
         packages:
           - c-compiler
           - cxx-compiler
-          - libcurl>=8.5.0
+          - libcurl>=8.5.0,<9.0a0
     specific:
       - output_types: conda
         matrices: