diff --git a/.github/workflows/ci_tests.yaml b/.github/workflows/ci_tests.yaml
index 256e49ce4..759e9a3bf 100644
--- a/.github/workflows/ci_tests.yaml
+++ b/.github/workflows/ci_tests.yaml
@@ -33,7 +33,6 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
-          - 3.x
         architecture:
           - x64
           - x86
diff --git a/README.rst b/README.rst
index 5ff192733..24e6038dd 100644
--- a/README.rst
+++ b/README.rst
@@ -42,7 +42,7 @@ Required Prerequisites
 Recommended Prerequisites
 =========================
 
-* aws-cryptographic-material-providers: == 1.7.2
+* aws-cryptographic-material-providers: == 1.7.3
     * Requires Python 3.11+.
 
 Installation
diff --git a/performance_tests/README.rst b/performance_tests/README.rst
index 8ec315343..0d8b94061 100644
--- a/performance_tests/README.rst
+++ b/performance_tests/README.rst
@@ -49,7 +49,7 @@ Required Prerequisites
 Recommended Prerequisites
 =========================
 
-* aws-cryptographic-material-providers: == 1.7.2
+* aws-cryptographic-material-providers: == 1.7.3
   * Requires Python 3.11+.
 
 *****
diff --git a/performance_tests/requirements_mpl.txt b/performance_tests/requirements_mpl.txt
index 77c6460a5..8f1756eec 100644
--- a/performance_tests/requirements_mpl.txt
+++ b/performance_tests/requirements_mpl.txt
@@ -1 +1 @@
-aws-cryptographic-material-providers==1.7.2
\ No newline at end of file
+aws-cryptographic-material-providers==1.7.3
\ No newline at end of file
diff --git a/requirements_mpl.txt b/requirements_mpl.txt
index 58c7d2012..4cee96294 100644
--- a/requirements_mpl.txt
+++ b/requirements_mpl.txt
@@ -1 +1 @@
-aws-cryptographic-material-providers==1.7.2
+aws-cryptographic-material-providers==1.7.3
diff --git a/setup.py b/setup.py
index dfbf91664..cd00b7f4e 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@ def get_requirements():
     # TODO-MPL: Point at PyPI once MPL is released.
     # This blocks releasing ESDK-Python MPL integration.
     extras_require={
-        "MPL": ["aws-cryptographic-material-providers==1.7.2"],
+        "MPL": ["aws-cryptographic-material-providers==1.7.3"],
     },
     classifiers=[
         "Development Status :: 5 - Production/Stable",