diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 2c723146f35..3083dafe177 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -51,7 +51,7 @@ dependencies:
 - librdkafka>=1.9.0,<1.10.0a0
 - librmm==24.2.*
 - make
-- mimesis>=4.1.0
+- mimesis>=4.1.0,<12
 - moto>=4.0.8
 - msgpack-python
 - myst-nb
diff --git a/conda/environments/all_cuda-120_arch-x86_64.yaml b/conda/environments/all_cuda-120_arch-x86_64.yaml
index 52ef95c335a..ab9b7db7705 100644
--- a/conda/environments/all_cuda-120_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-120_arch-x86_64.yaml
@@ -50,7 +50,7 @@ dependencies:
 - librdkafka>=1.9.0,<1.10.0a0
 - librmm==24.2.*
 - make
-- mimesis>=4.1.0
+- mimesis>=4.1.0,<12
 - moto>=4.0.8
 - msgpack-python
 - myst-nb
diff --git a/dependencies.yaml b/dependencies.yaml
index 91ac8371308..60b8368aa74 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -603,7 +603,7 @@ dependencies:
           - cramjam
           - fastavro>=0.22.9
           - hypothesis
-          - mimesis>=4.1.0
+          - mimesis>=4.1.0,<12
           - pytest-benchmark
           - pytest-cases
           - python-snappy>=0.6.0
diff --git a/python/cudf/pyproject.toml b/python/cudf/pyproject.toml
index 17c8ba02d3a..05309e09bcf 100644
--- a/python/cudf/pyproject.toml
+++ b/python/cudf/pyproject.toml
@@ -56,7 +56,7 @@ test = [
     "cramjam",
     "fastavro>=0.22.9",
     "hypothesis",
-    "mimesis>=4.1.0",
+    "mimesis>=4.1.0,<12",
     "msgpack",
     "pytest",
     "pytest-benchmark",