diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2d211769d..c29a76253 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,13 @@ This file is used to list changes made in each version of the AWS ParallelCluste
 - Upgrade Slurm to 23.02.5 (from 23.02.4).
   - Upgrade Pmix to 4.2.6 (from 3.2.3).
   - Upgrade libjwt to 1.15.3 (from 1.12.0).
+- Upgrade EFA installer to `1.26.1`
+  - Efa-driver: `efa-2.5.0-1`
+  - Efa-config: `efa-config-1.15-1`
+  - Efa-profile: `efa-profile-1.5-1`
+  - Libfabric-aws: `libfabric-aws-1.18.2-1`
+  - Rdma-core: `rdma-core-46.0-1`
+  - Open MPI: `openmpi40-aws-4.1.5-4`
 
 3.7.0
 ------
diff --git a/cookbooks/aws-parallelcluster-environment/resources/efa/partial/_common.rb b/cookbooks/aws-parallelcluster-environment/resources/efa/partial/_common.rb
index aea855633..f944b331c 100644
--- a/cookbooks/aws-parallelcluster-environment/resources/efa/partial/_common.rb
+++ b/cookbooks/aws-parallelcluster-environment/resources/efa/partial/_common.rb
@@ -17,8 +17,8 @@
 # EFA setup: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/efa-start.html
 #
 
-property :efa_version, String, default: '1.25.1'
-property :efa_checksum, String, default: 'd2abc553d22b89a4ce92882052c1fa6de450d3a801fe005da718b7d4b9602b06'
+property :efa_version, String, default: '1.26.1'
+property :efa_checksum, String, default: 'c616994c924f54ebfabfab32b7fe8ac56947fae00a0ff453d975e298d174fc96'
 
 action :setup do
   if efa_installed? && !::File.exist?(efa_tarball)
diff --git a/cookbooks/aws-parallelcluster-environment/spec/unit/resources/efa_spec.rb b/cookbooks/aws-parallelcluster-environment/spec/unit/resources/efa_spec.rb
index 53516eeae..c337ba2c7 100644
--- a/cookbooks/aws-parallelcluster-environment/spec/unit/resources/efa_spec.rb
+++ b/cookbooks/aws-parallelcluster-environment/spec/unit/resources/efa_spec.rb
@@ -2,8 +2,8 @@
 
 # parallelcluster default source dir defined in attributes
 source_dir = '/opt/parallelcluster/sources'
-efa_version = '1.25.1'
-efa_checksum = 'd2abc553d22b89a4ce92882052c1fa6de450d3a801fe005da718b7d4b9602b06'
+efa_version = '1.26.1'
+efa_checksum = 'c616994c924f54ebfabfab32b7fe8ac56947fae00a0ff453d975e298d174fc96'
 
 class ConvergeEfa
   def self.setup(chef_run)