diff --git a/Miniforge3/construct.yaml b/Miniforge3/construct.yaml
index 46102397..67a3917f 100644
--- a/Miniforge3/construct.yaml
+++ b/Miniforge3/construct.yaml
@@ -2,7 +2,7 @@
 {% set version = os.environ.get("MINIFORGE_VERSION", "24.9.2-0") %}
 {% set conda_libmamba_solver_version = "24.9.0"%}
 # when mamba_version is updated here, also update MICROMAMBA_VERSION in scripts/build.sh
-{% set mamba_version = "1.5.9"%}
+{% set mamba_version = "1.5.11"%}
 
 name: {{ name }}
 version: {{ version }}
@@ -29,7 +29,7 @@ user_requested_specs:
 {% if name.endswith("pypy3") %}
   - python 3.9.* *_pypy
   - conda >=24.7.1
-  - mamba >=1.5.9
+  - mamba >=1.5.11
 {% else %}
   - python 3.12.*
   - conda >={{ version.split("-")[0] }}
@@ -43,7 +43,7 @@ specs:
 {% if name.endswith("pypy3") %}
   - python 3.9.* *_pypy
   - conda 24.7.1
-  - mamba 1.5.9
+  - mamba 1.5.11
   - conda-libmamba-solver 24.7.0
 {% else %}
   - python 3.12.*
diff --git a/scripts/build.sh b/scripts/build.sh
index 30f43a33..ee01e97b 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -38,7 +38,7 @@ cp LICENSE "${TEMP_DIR}/"
 ls -al "${TEMP_DIR}"
 
 if [[ "${TARGET_PLATFORM}" != win-* ]]; then
-    MICROMAMBA_VERSION=1.5.9
+    MICROMAMBA_VERSION=1.5.11
     MICROMAMBA_BUILD=0
     mkdir "${TEMP_DIR}/micromamba"
     pushd "${TEMP_DIR}/micromamba"