diff --git a/.github/workflows/catch_hangs.yml b/.github/workflows/catch_hangs.yml
index 7b6bc053bb317e..6421d575dc04e9 100644
--- a/.github/workflows/catch_hangs.yml
+++ b/.github/workflows/catch_hangs.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go (bootstrap)
         uses: actions/setup-go@v5
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.5"
 
       - name: Export GOROOT_BOOTSTRAP
         run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> "$GITHUB_ENV"
diff --git a/.github/workflows/catch_leaks.yml b/.github/workflows/catch_leaks.yml
index a6eebf9e7188bb..5a726eb20f5cae 100644
--- a/.github/workflows/catch_leaks.yml
+++ b/.github/workflows/catch_leaks.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go (bootstrap)
         uses: actions/setup-go@v5
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.5"
 
       - name: Export GOROOT_BOOTSTRAP
         run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> "$GITHUB_ENV"
diff --git a/.github/workflows/catch_races.yml b/.github/workflows/catch_races.yml
index 8746e78099f9fe..12084c9aac4d7f 100644
--- a/.github/workflows/catch_races.yml
+++ b/.github/workflows/catch_races.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go (bootstrap)
         uses: actions/setup-go@v5
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.5"
 
       - name: Export GOROOT_BOOTSTRAP
         run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> "$GITHUB_ENV"
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 0bb3387ef7ba7c..5666bc1cf46a6b 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -16,7 +16,7 @@ jobs:
     - name: Set up Go (bootstrap)
       uses: actions/setup-go@v5
       with:
-        go-version: '1.25.5'
+        go-version: '1.26.5'
 
     - name: Export GOROOT_BOOTSTRAP
       run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> $GITHUB_ENV
@@ -43,7 +43,7 @@ jobs:
     - name: Set up Go (bootstrap)
       uses: actions/setup-go@v5
       with:
-        go-version: '1.25.5'
+        go-version: '1.26.5'
 
     - name: Export GOROOT_BOOTSTRAP
       run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> $GITHUB_ENV
diff --git a/.github/workflows/smoke_use_libafl.yml b/.github/workflows/smoke_use_libafl.yml
index 78392610e793ff..33c34996a39329 100644
--- a/.github/workflows/smoke_use_libafl.yml
+++ b/.github/workflows/smoke_use_libafl.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go (bootstrap)
         uses: actions/setup-go@v5
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.5"
 
       - name: Export GOROOT_BOOTSTRAP
         run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> "$GITHUB_ENV"
@@ -78,7 +78,7 @@ jobs:
       - name: Set up Go (bootstrap)
         uses: actions/setup-go@v5
         with:
-          go-version: "1.25.5"
+          go-version: "1.26.5"
 
       - name: Export GOROOT_BOOTSTRAP
         run: echo "GOROOT_BOOTSTRAP=$(go env GOROOT)" >> "$GITHUB_ENV"
diff --git a/misc/gosentry/scripts/quickcheck.sh b/misc/gosentry/scripts/quickcheck.sh
index e1c6f0acdd6f32..a91c57287bccf9 100755
--- a/misc/gosentry/scripts/quickcheck.sh
+++ b/misc/gosentry/scripts/quickcheck.sh
@@ -8,7 +8,7 @@ if [[ -z "${bootstrap_goroot}" ]]; then
   if command -v go >/dev/null 2>&1; then
     bootstrap_goroot="$(go env GOROOT)"
   else
-    bootstrap_ver="go1.25.5"
+    bootstrap_ver="go1.26.5"
     os="$(uname -s | tr '[:upper:]' '[:lower:]')"
     arch="$(uname -m)"
     case "${arch}" in
diff --git a/misc/gosentry/tests/smoke_use_libafl.sh b/misc/gosentry/tests/smoke_use_libafl.sh
index 5fb6596532b68b..591760d92d1c87 100755
--- a/misc/gosentry/tests/smoke_use_libafl.sh
+++ b/misc/gosentry/tests/smoke_use_libafl.sh
@@ -8,7 +8,7 @@ if [[ -z "${bootstrap_goroot}" ]]; then
   if command -v go >/dev/null 2>&1; then
     bootstrap_goroot="$(go env GOROOT)"
   else
-    bootstrap_ver="go1.25.5"
+    bootstrap_ver="go1.26.5"
     os="$(uname -s | tr '[:upper:]' '[:lower:]')"
     arch="$(uname -m)"
     case "${arch}" in