diff --git a/.drone.yml b/.drone.yml
index a1d927774..4d784ee48 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -24,7 +24,7 @@ steps:
       - make lint
 
   - name: Run tests
-    image: golang:1.21.4
+    image: golang:1.21.5
     environment:
       RUNNER_TEMP: /tmp
       TELEPORT_ENTERPRISE_LICENSE:
@@ -66,7 +66,7 @@ workspace:
 
 steps:
   - name: Build artifacts
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - make build-all
 
@@ -97,7 +97,7 @@ workspace:
 
 steps:
   - name: Build artifacts
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - mkdir -p build/
       - export PLUGIN_TYPE=$(echo ${DRONE_TAG} | cut -d- -f2)
@@ -311,7 +311,7 @@ workspace:
 
 steps:
   - name: Build artifacts
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - mkdir -p build/
       - go install github.com/konoui/lipo@latest
@@ -384,7 +384,7 @@ workspace:
 
 steps:
   - name: Build artifacts
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - mkdir -p build/
       - make OS=linux ARCH=amd64 release/event-handler
@@ -927,7 +927,7 @@ concurrency:
 
 steps:
   - name: Upload terraform provider to staging registry
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - cd tooling
       - |
@@ -985,7 +985,7 @@ concurrency:
 
 steps:
   - name: Upload terraform provider to staging registry
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - cd tooling
       - |
@@ -1043,7 +1043,7 @@ concurrency:
 
 steps:
   - name: Promote terraform provider to public registry
-    image: golang:1.21.4
+    image: golang:1.21.5
     commands:
       - cd tooling
       - |
@@ -1081,6 +1081,6 @@ steps:
         from_secret: PRODUCTION_TERRAFORM_REGISTRY_SIGNING_KEY
 ---
 kind: signature
-hmac: 0c826745b4e302f17699d82532ddadb4005f75395648b99b74e989e0f01e7c33
+hmac: fd00ccbbe9d725d215d2802b16ae34a1ff2ed29b32e71ca1aa6d911f9baffdeb
 
 ...
diff --git a/access/discord/Makefile b/access/discord/Makefile
index 66d3f6c50..94ae5b4f7 100644
--- a/access/discord/Makefile
+++ b/access/discord/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-discord
diff --git a/access/email/Makefile b/access/email/Makefile
index 834bfc7c0..89eb6f122 100644
--- a/access/email/Makefile
+++ b/access/email/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-email
diff --git a/access/jira/Makefile b/access/jira/Makefile
index 6e88011c4..8d6713d9e 100644
--- a/access/jira/Makefile
+++ b/access/jira/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-jira
diff --git a/access/mattermost/Makefile b/access/mattermost/Makefile
index 028207f44..09c244099 100644
--- a/access/mattermost/Makefile
+++ b/access/mattermost/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-mattermost
diff --git a/access/msteams/Makefile b/access/msteams/Makefile
index 72f9ff557..ed8ddb57f 100644
--- a/access/msteams/Makefile
+++ b/access/msteams/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-msteams
diff --git a/access/pagerduty/Makefile b/access/pagerduty/Makefile
index 15a55ab88..45aa17f8d 100644
--- a/access/pagerduty/Makefile
+++ b/access/pagerduty/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-pagerduty
diff --git a/access/slack/Makefile b/access/slack/Makefile
index dad542f38..dd5b60d7c 100644
--- a/access/slack/Makefile
+++ b/access/slack/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 BUILDDIR ?= build
 BINARY = $(BUILDDIR)/teleport-slack
diff --git a/docker/Makefile b/docker/Makefile
index ce09bab42..63a2fc1d6 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -10,7 +10,7 @@ MKFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
 # enterprise version, but has to be available on cdn.teleport.dev
 RELEASE ?= teleport-ent-v14.0.0-linux-amd64-bin
 
-RUNTIME ?= go1.21.4
+RUNTIME ?= go1.21.5
 BBOX ?= public.ecr.aws/gravitational/teleport-buildbox:$(RUNTIME)
 
 # Teleport CLI and plugins CLI flags to pass to them on start
diff --git a/docker/plugins/Dockerfile b/docker/plugins/Dockerfile
index 15afb0a21..98eda7315 100644
--- a/docker/plugins/Dockerfile
+++ b/docker/plugins/Dockerfile
@@ -1,5 +1,5 @@
 # Defines Teleport Slack image, based on Teleport OSS image.
-ARG RUNTIME="go1.21.4"
+ARG RUNTIME="go1.21.5"
 ARG BBOX="public.ecr.aws/gravitational/teleport-buildbox"
 FROM $BBOX:$RUNTIME
 
diff --git a/event-handler/Makefile b/event-handler/Makefile
index 1b4f612aa..61d5c9e0f 100644
--- a/event-handler/Makefile
+++ b/event-handler/Makefile
@@ -1,5 +1,5 @@
 VERSION=14.2.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 
 GITTAG=v$(VERSION)
 
diff --git a/event-handler/build.assets/Makefile b/event-handler/build.assets/Makefile
index 103525530..73deb1917 100644
--- a/event-handler/build.assets/Makefile
+++ b/event-handler/build.assets/Makefile
@@ -1,5 +1,5 @@
 VERSION=0.0.1
-GO_VERSION=1.21.4
+GO_VERSION=1.21.5
 LOCALDIR := $(dir $(CURDIR)/$(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST)))
 TOP ?= $(abspath $(LOCALDIR)/../..)
 SRCDIR=/go/src/github.com/gravitational/teleport-plugins/event-handler
diff --git a/go.mod b/go.mod
index 6dc810814..559f53df8 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/gravitational/teleport-plugins
 
 go 1.21
 
-toolchain go1.21.4
+toolchain go1.21.5
 
 require (
 	github.com/DanielTitkov/go-adaptive-cards v0.2.2
diff --git a/tooling/go.mod b/tooling/go.mod
index 3c1e6f890..35b855b0a 100644
--- a/tooling/go.mod
+++ b/tooling/go.mod
@@ -2,7 +2,7 @@ module github.com/gravitational/teleport-plugins/tooling
 
 go 1.21
 
-toolchain go1.21.4
+toolchain go1.21.5
 
 require (
 	github.com/ProtonMail/go-crypto v0.0.0-20230528122434-6f98819771a1