diff --git a/.test-defs/CreateShoot.yaml b/.test-defs/CreateShoot.yaml
index e1334409558..dfa224c5aa0 100644
--- a/.test-defs/CreateShoot.yaml
+++ b/.test-defs/CreateShoot.yaml
@@ -43,4 +43,4 @@ spec:
 #    -machine-type=$MACHINE_TYPE
 #    -external-domain=
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/DeleteShoot.yaml b/.test-defs/DeleteShoot.yaml
index 1ec57ab53b9..f6322e41487 100644
--- a/.test-defs/DeleteShoot.yaml
+++ b/.test-defs/DeleteShoot.yaml
@@ -16,4 +16,4 @@ spec:
     --shoot-name=$SHOOT_NAME
     --project-namespace=$PROJECT_NAMESPACE
     --kubecfg="$TM_KUBECONFIG_PATH/gardener.config"
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/HibernateShoot.yaml b/.test-defs/HibernateShoot.yaml
index d3c43e99735..a5f4c01114e 100644
--- a/.test-defs/HibernateShoot.yaml
+++ b/.test-defs/HibernateShoot.yaml
@@ -17,4 +17,4 @@ spec:
     --project-namespace=$PROJECT_NAMESPACE
     --kubecfg="$TM_KUBECONFIG_PATH/gardener.config"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/MigrateShoot.yaml b/.test-defs/MigrateShoot.yaml
index 27f4df8d558..d8f180ddeb5 100644
--- a/.test-defs/MigrateShoot.yaml
+++ b/.test-defs/MigrateShoot.yaml
@@ -20,4 +20,4 @@ spec:
     -mr-exclude-list="$MR_EXCLUDE_LIST"
     -resources-with-generated-name="$RESOURCES_WITH_GENERATED_NAME"
     -add-test-run-taint="$ADD_TEST_RUN_TAINT"
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/ReconcileShoots.yaml b/.test-defs/ReconcileShoots.yaml
index f5d395b3460..b2fdcfe54c1 100644
--- a/.test-defs/ReconcileShoots.yaml
+++ b/.test-defs/ReconcileShoots.yaml
@@ -16,4 +16,4 @@ spec:
     -kubecfg=$TM_KUBECONFIG_PATH/gardener.config
     -version=$GARDENER_VERSION
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/ShootKubernetesUpdateTest.yaml b/.test-defs/ShootKubernetesUpdateTest.yaml
index a784d763906..47578ca6486 100644
--- a/.test-defs/ShootKubernetesUpdateTest.yaml
+++ b/.test-defs/ShootKubernetesUpdateTest.yaml
@@ -20,4 +20,4 @@ spec:
     -project-namespace=$PROJECT_NAMESPACE
     -version=$K8S_VERSION
     -version-worker-pools=$K8S_VERSION_WORKER_POOLS
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerBeta.yaml b/.test-defs/TestSuiteGardenerBeta.yaml
index cf3464d74a4..00efe02909f 100644
--- a/.test-defs/TestSuiteGardenerBeta.yaml
+++ b/.test-defs/TestSuiteGardenerBeta.yaml
@@ -20,4 +20,4 @@ spec:
       -ginkgo.focus="\[BETA\]"
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerBetaSerial.yaml b/.test-defs/TestSuiteGardenerBetaSerial.yaml
index 9eab88e833d..58b0c04f68a 100644
--- a/.test-defs/TestSuiteGardenerBetaSerial.yaml
+++ b/.test-defs/TestSuiteGardenerBetaSerial.yaml
@@ -22,4 +22,4 @@ spec:
       -ginkgo.focus="\[BETA\].*\[SERIAL\]"
       -ginkgo.skip="\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerDefault.yaml b/.test-defs/TestSuiteGardenerDefault.yaml
index 8e8b182335a..6706c6bfd0b 100644
--- a/.test-defs/TestSuiteGardenerDefault.yaml
+++ b/.test-defs/TestSuiteGardenerDefault.yaml
@@ -20,4 +20,4 @@ spec:
       -ginkgo.focus="\[DEFAULT\]"
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerDefaultSerial.yaml b/.test-defs/TestSuiteGardenerDefaultSerial.yaml
index 725e9840392..6920feb4adf 100644
--- a/.test-defs/TestSuiteGardenerDefaultSerial.yaml
+++ b/.test-defs/TestSuiteGardenerDefaultSerial.yaml
@@ -22,4 +22,4 @@ spec:
       -ginkgo.focus="\[DEFAULT\].*\[SERIAL\]"
       -ginkgo.skip="\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerRelease.yaml b/.test-defs/TestSuiteGardenerRelease.yaml
index 7be63d655ed..a01841d7650 100644
--- a/.test-defs/TestSuiteGardenerRelease.yaml
+++ b/.test-defs/TestSuiteGardenerRelease.yaml
@@ -20,4 +20,4 @@ spec:
       -ginkgo.focus="\[RELEASE\]"
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteGardenerReleaseSerial.yaml b/.test-defs/TestSuiteGardenerReleaseSerial.yaml
index 44aeb08aa94..1755a120b67 100644
--- a/.test-defs/TestSuiteGardenerReleaseSerial.yaml
+++ b/.test-defs/TestSuiteGardenerReleaseSerial.yaml
@@ -22,4 +22,4 @@ spec:
       -ginkgo.focus="\[RELEASE\].*\[SERIAL\]"
       -ginkgo.skip="\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootBeta.yaml b/.test-defs/TestSuiteShootBeta.yaml
index ec0cc5e7526..cdce968556d 100644
--- a/.test-defs/TestSuiteShootBeta.yaml
+++ b/.test-defs/TestSuiteShootBeta.yaml
@@ -22,4 +22,4 @@ spec:
       -ginkgo.focus="\[BETA\]"
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootBetaDisruptive.yaml b/.test-defs/TestSuiteShootBetaDisruptive.yaml
index 62f925ff068..c0caf99175c 100644
--- a/.test-defs/TestSuiteShootBetaDisruptive.yaml
+++ b/.test-defs/TestSuiteShootBetaDisruptive.yaml
@@ -24,4 +24,4 @@ spec:
       -ginkgo.focus="\[BETA\].*\[DISRUPTIVE\]"
       -ginkgo.skip="\[SERIAL\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootBetaSerial.yaml b/.test-defs/TestSuiteShootBetaSerial.yaml
index ad161a014d7..55162ef9524 100644
--- a/.test-defs/TestSuiteShootBetaSerial.yaml
+++ b/.test-defs/TestSuiteShootBetaSerial.yaml
@@ -24,4 +24,4 @@ spec:
       -ginkgo.focus="\[BETA\].*\[SERIAL\]"
       -ginkgo.skip="\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootDefault.yaml b/.test-defs/TestSuiteShootDefault.yaml
index 570b5c4a986..349501b2d50 100644
--- a/.test-defs/TestSuiteShootDefault.yaml
+++ b/.test-defs/TestSuiteShootDefault.yaml
@@ -23,4 +23,4 @@ spec:
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
       -ginkgo.timeout=2h
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootDefaultDisruptive.yaml b/.test-defs/TestSuiteShootDefaultDisruptive.yaml
index c16198ed620..126de01755a 100644
--- a/.test-defs/TestSuiteShootDefaultDisruptive.yaml
+++ b/.test-defs/TestSuiteShootDefaultDisruptive.yaml
@@ -24,4 +24,4 @@ spec:
       -ginkgo.focus="\[DEFAULT\].*\[DISRUPTIVE\]"
       -ginkgo.skip="\[SERIAL\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootDefaultSerial.yaml b/.test-defs/TestSuiteShootDefaultSerial.yaml
index e15a6832dea..45dbfc08bfd 100644
--- a/.test-defs/TestSuiteShootDefaultSerial.yaml
+++ b/.test-defs/TestSuiteShootDefaultSerial.yaml
@@ -25,4 +25,4 @@ spec:
       -ginkgo.skip="\[DISRUPTIVE\]"
       -ginkgo.timeout=2h
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootRelease.yaml b/.test-defs/TestSuiteShootRelease.yaml
index 8c0ff3fba56..9b0da56e664 100644
--- a/.test-defs/TestSuiteShootRelease.yaml
+++ b/.test-defs/TestSuiteShootRelease.yaml
@@ -22,4 +22,4 @@ spec:
       -ginkgo.focus="\[RELEASE\]"
       -ginkgo.skip="\[SERIAL\]|\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootReleaseDisruptive.yaml b/.test-defs/TestSuiteShootReleaseDisruptive.yaml
index c0359cc8f4e..2e5fdef0549 100644
--- a/.test-defs/TestSuiteShootReleaseDisruptive.yaml
+++ b/.test-defs/TestSuiteShootReleaseDisruptive.yaml
@@ -24,4 +24,4 @@ spec:
       -ginkgo.focus="\[RELEASE\].*\[DISRUPTIVE\]"
       -ginkgo.skip="\[SERIAL\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/TestSuiteShootReleaseSerial.yaml b/.test-defs/TestSuiteShootReleaseSerial.yaml
index 20ef2a48456..967865cdfcc 100644
--- a/.test-defs/TestSuiteShootReleaseSerial.yaml
+++ b/.test-defs/TestSuiteShootReleaseSerial.yaml
@@ -24,4 +24,4 @@ spec:
       -ginkgo.focus="\[RELEASE\].*\[SERIAL\]"
       -ginkgo.skip="\[DISRUPTIVE\]"
 
-  image: golang:1.21.5
+  image: golang:1.22.0
diff --git a/.test-defs/WakeUpShoot.yaml b/.test-defs/WakeUpShoot.yaml
index 98fcc136f98..2c5f6bf853a 100644
--- a/.test-defs/WakeUpShoot.yaml
+++ b/.test-defs/WakeUpShoot.yaml
@@ -17,4 +17,4 @@ spec:
     --project-namespace=$PROJECT_NAMESPACE
     --kubecfg="$TM_KUBECONFIG_PATH/gardener.config"
 
-  image: golang:1.21.5
+  image: golang:1.22.0